19 C.F.R. Appendix to Part 146—Guidelines for Determining Producibility and Relative Values for Oil Refinery Zones


Title 19 - Customs Duties


Title 19: Customs Duties
PART 146—FOREIGN TRADE ZONES
Subpart H—Petroleum Refineries in Foreign-Trade Subzones


Appendix to Part 146—Guidelines for Determining Producibility and Relative Values for Oil Refinery Zones

Where an example is set out in this appendix, the example is for purposes of illustrating the application of a provision, and where there is any inconsistency between the example and the provision, the provision prevails to the extent of the inconsistency. Alternative formats are also acceptable so long as they are consistent with the provisions of this part.

I. Attribution Using Producibility Showing Manufacturing Periods From Admission t o Removal Within a Calender Month.

Volume losses and gains accounted for by weight.

Day 1

Receipt into the refinery subzone during a 30-day month:

50,000 pounds privileged foreign (PF) class II crude oil.

50,000 pounds PF class III crude oil.

50,000 pounds domestic status class III crude oil.

Day 10

Removal from the refinery subzone for exportation of 50,000 pounds of aviation gasoline.

The period of manufacture for the aviation gasoline is Day 1 to Day 10. The refiner must first attribute the designated source of the aviation gasoline.

In order to maximize the duty benefit conferred by the zone operation, the refiner chooses to attribute the exported aviation gasoline to the privileged foreign status crude oil. Under the tables for potential production (T.V. 66–16), class II crude has a 30% potential, and class III has a 40% potential. The maximum aviation gasoline producible from the class II crude oil is 15,000 pounds (50,000 × .30). The maximum aviation gasoline producible from the privileged foreign status class III crude oil is 20,000 pounds (50,000 × .40). The domestic class III crude would also make 20,000 pounds of aviation gasoline.

The refiner could attribute 15,000 pounds of the privileged foreign class II crude oil, 20,000 pounds of the privileged foreign class III crude oil, and 15,000 pounds of the domestic class III crude oil as the source of the 50,000 pounds of the aviation gasoline that was exported; 35,000 pounds of class II crude oil would be available for further production for other than aviation gasoline, 30,000 pounds of privileged foreign class III crude oil would be available for further production for other than aviation gasoline, and 35,000 pounds of domestic status class III crude oil would be available for further production, of which up to 5,000 pounds could be attributed to aviation gasoline.

Day 21

Receipt in the refinery subzone:

50,000 pounds PF status class I crude oil.

50,000 pounds PF status class IV crude oil.

Day 30

Removal from the refinery subzone:

30,000 pounds of motor gasoline for consumption.

10,000 pounds of jet fuel sold to the US Air Force for use in military aircraft.

10,000 pounds of aviation gasoline sold to a U.S. commuter airline for domestic flights.

10,000 pounds of kerosene for exportation.

To the extent that the crude oils that entered production on Day 1 are attributed as the designated sources for the products removed on Day 30, the period of manufacture is Day 1 to Day 30. If the refiner chooses to attribute the crude oils that were admitted on Day 21 as the designated sources of the products removed on Day 30 using the production standards published in T.D. 66–16, the manufacturing period is Day 21 to Day 30. This choice will be important if a relative value calculation on the privileged foreign status crude oil is required, because the law requires the value used for computing the relative value to be the average per unit value of each product for the manufacturing period. Relative value must be calculated if a source feedstock is separated into two or more products that are removed from the subzone refinery. If the average per unit value for each product differs between the manufacturing period from Day 1 to Day 30 and the manufacturing period from Day 21 to Day 30, the correct period must be used in the calculation.

In order to minimize duty liability, the refiner would try to attribute the production of the exported kerosene and the sale of the jet fuel to the US Air Force to the privileged foreign crude oils. For the same reason, the refiner would try to attribute the removed motor gasoline and the aviation gasoline for the commuter airline to the domestic crude oil.

Accordingly, the refiner chooses to attribute up to 5,000 pounds of the domestic status class III crude as the source of the 10,000 pounds of aviation gasoline removed from the subzone refinery for the commuter airline. Since no other aviation gasoline could have been produced from the crude oils that were admitted into the refinery subzone Day 1, the refiner must attribute the remainder to the crude oils that entered production on Day 21. Again, using the production standards from T.D. 66–16, the class I crude could produce aviation gasoline in an amount up to 10,000 pounds (50,000 × .20). Likewise, the class IV crude oil could produce aviation gasoline in an amount up to 8,500 pounds (50,000 × .17).

The refiner selects use of the class I crude as the source of the aviation gasoline. The refiner could attribute up to 27,300 pounds (35,000−5,000 × .91) of the domestic class III crude oil as the source of the motor gasoline. This would leave 2,700 pounds of domestic class III crude available for further production for other than aviation gasoline or motor gasoline. The remaining motor gasoline removed (also 2,700 pounds) must be attributed to a privileged foreign crude oil. The refiner selects the privileged foreign class II crude oil that entered production on Day 1 as the source for the remaining 2,700 pounds of motor gasoline.

This would leave 32,300 pounds of privileged foreign class II crude oil available for further production, of which no more than 27,400 pounds could be designated as the source of motor gasoline. The refiner attributes the jet fuel that is removed from the refinery subzone for the US Air Force for use in military aircraft to the privileged foreign class II crude oil. The refiner could attribute up to 20,995 pounds of jet fuel from that class II crude oil (32,300 × .65). Designating that class II crude oil as the source of the 10,000 pounds of jet fuel leaves 22,300 pounds of privileged foreign class II crude oil available for further production, of which up to 10,995 pounds could be attributed as the source of the jet fuel. Because the motor gasoline and the jet fuel, under the foregoing attribution, would be considered to have been separated from the privileged foreign class II crude oil, a relative value calculation would be required.

The jet fuel is eligible for removal from the subzone free of duty by virtue of 19 U.S.C. 1309(a)(1)(A). The refiner could attribute the privileged foreign class II crude oil as being the source of the 10,000 pounds of jet fuel (22,300 × .65). The refiner chooses to attribute the privileged foreign class III crude oil as the source of the jet fuel. The refiner could attribute to that class III crude oil up to 15,000 pounds of kerosene (30,000 × .50).

II. Attribution on a FIFO Basis

(Accounting for volume losses or gains by the weight method)

Day 1–5

Transfer, into the Refinery Subzone, from one or more storage tanks into process 150 barrels of Privileged Foreign (PF) Class II crude oil, equivalent to 50,000 pounds.

Day 6

Removal from the refinery subzone 119 barrels of residual oils to customs territory, equivalent to 40,000 pounds.

Since the operator uses the FIFO method of attribution, as the product is removed from the subzone, or consumed or lost within the subzone, attribution must be to the oldest feedstock available for attribution. Accordingly, the 40,000 pounds of residual oils will be attributed to 40,000 pounds of the PF Class II crude oil from Day 1–5.

Day 10

Transfer, into the refinery subzone, from one or more storage tanks 4 barrels of domestic motor gasoline blend stock, equivalent to 1,000 pounds to motor gasoline blending tank.

Day 6–15

Transfer, into the refinery subzone, from one or more storage tanks into process 320 barrels of Domestic Class III crude oil, equivalent to 100,000 pounds.

Day 16

Removal from the refinery subzone 14 barrels of asphalt to customs territory, equivalent to 5,000 pounds.

The 5,000 pounds of asphalt will be attributed to 5,000 pounds of PF Class II crude oil from Day 1–5.

Day 17

Removal from the refinery subzone, 324 barrels of motor gasoline to customs territory, equivalent to 81,000 pounds.

The 81,000 pounds of motor gasoline will be attributed to 1,000 pounds of domestic motor gasoline blend stock from Day 10, to the remaining 5,000 pounds of PF Class II crude oil from Day 1–5 and 75,000 pounds of domestic Class III crude oil from Day 6–15.

Day 16–20

Transfer, into the refinery subzone, from one or more storage tanks into process 169 barrels of Privileged Foreign (PF) Class III crude oil, equivalent to 50,000 pounds.

Day 22

Removal from the refinery subzone, 214 barrels of jet fuel for exportation, equivalent to 60,000 pounds.

The 60,000 pounds of jet fuel will be attributed to the remaining 25,000 pounds of domestic Class III crude oil from Day 6–15 and 35,000 pounds of PF Class III crude oil from Day 16–20.

Day 21–25

Transfer, into the refinery subzone from one or more storage tanks into process, 143 barrels of domestic Class I crude oil, equivalent to 50,000 pounds.

Day 30 (End of the Manufacturing Period)

It is determined that during the manufacturing period just ended, that 34 barrels of fuel, equivalent to 10,000 pounds was consumed, and 5 barrels of oil, equivalent to 1,500 pounds was lost in the refining production process within the refinery subzone.

The 10,000 pounds of fuel consumed will be attributed 10,000 pounds of PF Class III crude oil from Day 16–20. The 1,500 pounds of oil lost in the refining production process will be attributed to 1,500 pounds of PF Class III crude oil from Day 16–20. The remaining 3,500 pounds of PF Class III crude oil from Day 16–20 will be the first to be attributed during the next manufacturing period.

III. Relative Value Calculation

Because privileged foreign feedstocks transferred into process during Day 1–5 and Day 16–20 have two or more products attributed to them, each feedstock will require a relative value calculation.

Relative value calculation for UIN Day 1–5, 50,000 pounds, equivalent to 150 barrels.

 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                                                                       D Product      E R.V.                  G Dutiable                                                                  A Lbs       B  BBLS      C $/BBL       value        Factor     F R.V. BBL      BBL--------------------------------------------------------------------------------------------------------------------------------------------------------Residual oil.................................................       40,000          119        15.00        1,785        .9047          108          108Asphalt......................................................        5,000           14        13.00          182        .7840           11           11Motor gasoline...............................................        5,000           20        26.00          520       1.5682           31           31                                                              ------------------------------------------------------------------------------------------      Totals.................................................       50,000          153  ...........        2,487  ...........          150         150--------------------------------------------------------------------------------------------------------------------------------------------------------A=Pounds Attributed.B=Equivalent Barrels.C=Price of Product.D=BxC.E=C/(Total of Column D/Attributed Crude BBLS).Residual Oil RV Factor=15.00/(2,487/150)=.9047.F=BxE.G=Dutiable Barrels.Since all products attributed to the 50,000 pounds (150 BBLS) of PF Class II crude entered customs territory duty equals $7.88 (150x.0525).Feedstock factor calculation for UIN Day 16-20, 46,500 pounds equivalent to 157 barrels.
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                                                                        Product     Feedstock                  Dutiable                                                                   Lbs          BBLS        $/BBL        value        factor      R.V. BBL       BBL--------------------------------------------------------------------------------------------------------------------------------------------------------Jet Fuel.....................................................       35,000          125        27.00        3,375       1.1030          138            0Fuel.........................................................       10,000           34        12.00          408       0.4902           17            0Consumed Process Loss........................................        1,500            5        12.00           60       0.4902            2            0                                                              ------------------------------------------------------------------------------------------      Totals.................................................       46,500          164  ...........        3,843  ...........          157           0--------------------------------------------------------------------------------------------------------------------------------------------------------Since jet fuel was exported, no duty is applicable. Fuel consumed for refinery process was consumed within the subzone premises and did not enter  customs territory, thus no duty is applicable (assume refinery not barred by duty-free consumption restriction). Likewise, the process loss occurred  entirely within the subzone. Therefore, no duty is applicable.

IV. Attribution to Privileged Foreign Feedstock; Relative Value; Monthly Manufacturing Period, Weekly Entries, Attribution to a Prior Period; Volume Loss or Gain Shown by Volume Differences.

    An operator who elects to attribute on a monthly basis files the   following estimated removal of final products for the first week in                               September:   Jet Fuel (deemed exported on international flights)...........    20,000Gasoline_Domestic Consumption.................................    15,000Duty-free certified as emergency war material.................    10,000Petroleum coke exportations...................................    10,000Distillate for consumption....................................     5,000Petrochemicals exported.......................................    10,000                                                               ---------      Total removals..........................................    70,000 Because it does not elect to make attributions for feedstocks that were  charged to operating units during the same week, the operator  attributes the estimated removals to final products made during August  from the following feedstocks:
   Class II PF (privileged foreign) crude........................    20,000Class III PF crude............................................    35,000Class III D (domestic) crude..................................    20,000Class III NPF (nonprivileged foreign crude....................    20,000                                                               ---------                                                                 95,000 During August the operator produced from those feedstocks:
   Jet..........................................................     35,000Gasoline.....................................................     40,000Petroleum Coke...............................................     10,000Distillate...................................................      5,000Petrochemicals...............................................     15,000                                                              ----------                                                                105,000 There is a gain of 105,000-95,000=10,000Using the tables in T.D. 66-16, the following choices are available for  attribution:
 ----------------------------------------------------------------------------------------------------------------                                                                             Petrolum                   Petro-                                      Charged        Jet        Gasoline       coke      Distillate    chemical----------------------------------------------------------------------------------------------------------------Class II PF Crude.................       20,000       13,000       17,200        4,400       17,200        5,000Class III PF Crude................       35,000       24,500       31,850       14,000       31,150       10,150Class III D Crude.................       20,000       14,000       18,200        8,000       17,800        5,800Class III NPF Crude...............       20,000       14,000       18,200        8,000       17,800        5,800----------------------------------------------------------------------------------------------------------------Feedstock factors are calculated:
 ----------------------------------------------------------------------------------------------------------------                                                                              Value                   Feedstock                                                                Barrels      barrels       Value       factors----------------------------------------------------------------------------------------------------------------Gasoline....................................................       40,000          $25   $1,000,000        .9117Jet Fuel....................................................       35,000           23      805,000        .8388Distillate..................................................        5,000           20      100,000        .7294Petroleum Coke..............................................       10,000           10      100,000        .3647Petrochemicals..............................................       15,000           40      600,000       1.4587                                                             ---------------------------------------------------                                                                  105,000  ...........    2,605,000                                                             ---------------------------Gain........................................................      -10,000   $2,605,000                                                             ---------------------------      Total.................................................   \1\ 95,000      =$27.42                                                                               average                                                                           value p/bbl----------------------------------------------------------------------------------------------------------------Using the feedstock factor the refiner makes the following attributions:
   Jet Fuel.........................       24,192  (20,291 feedstock                                                 attributed to Class III                                                 PF Crude).                                        10,808  Class III NPF Crude                                                 (attribution of 9066                                                 solely for purpose of                                                 accounting for the                                                 amount of NPF used).                                  -------------                                        35,000  Gasoline.......................        5,000  (4,559 feedstock                                                 attributed to Class III                                                 PF Crude).                                         5,000  Class III NPF Crude                                                 (attribution of 4599                                                 solely for purpose of                                                 accounting for the                                                 amount of NPF used).                                        15,000  (13,676 feedstock                                                 attributed to Class III                                                 D Crude).                                  -------------Petroleum Coke...................        8,418  (3,070 feedstock                                                 attributed to Class II                                                 PF Crude).                                         1,582  Class III NPF Crude                                                 (attribution of 577                                                 solely for purposes of                                                 accounting for the                                                 amount of NPF used).                                  -------------                                        10,000Distillate.......................        5,000  (3,647 feedstock                                                 attributed to Class III                                                 Domestic).Petrochemicals...................        3,975  (5,800 feedstock                                                 attributed to Class III                                                 NPF Crude).                                         6,025  (8,789 feedstock                                                 attributed to Class III                                                 PF Crude).                                  -------------                                        10,000 

V. Weekly Entry, Weekly Manufacturing Period, and Relative Values Calculated on the Actual Weighted Average Values at the End of the Week.

On the weekly estimated production CF 3461, the refiner is required to provide a pro forma invoice or schedule showing the number of units of each type of merchandise to be removed during the week and their zone and dutiable values. For example, on CF 3461 the refiner estimates the following shipments and relative values for the next week and files this on the preceding Friday.

 ----------------------------------------------------------------------------------------------------------------                                                                   PF shipments    Value/barrel                         Product week 1                               (MBBLS)        (platts)       Total value----------------------------------------------------------------------------------------------------------------Motor Gasoline..................................................          20,000             $35        $700,000Total Alkylate..................................................          25,000              35         875,000Heavy Reformate.................................................          60,000              35       2,100,000Reformer Feed...................................................         110,000              35       3,850,000Raffinates......................................................         200,000              35       7,000,000Jet Fuel........................................................         200,000              35       7,000,000                                                                 ----------------                ---------------      Total.....................................................         615,000  ..............     $21,525,000----------------------------------------------------------------------------------------------------------------Attributed Feedstock_Class III Crude: 615,000@ $105=$64,575 (estimated duties)During that week the refiner actually removes the following products and reports those on the CF 7501 filed  within 10 business days after the CF 3461 is filed. Column 3 is the actual ``weighted average'' value for the  manufacturing period, therefore, no reconciliation is necessary.
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                               2  PF         3  Value/                      5  Relative    6  Feedstock                       1  Product                            Shipments      barrel (wt.   4  Total value   value factor      distribu.    7  Liq. duties                                                              (mbbls)          avg.)          (2)x(3)         (3)/(8)         (5)x(2)      (6)x(10) (9)--------------------------------------------------------------------------------------------------------------------------------------------------------Week 1:    Motor Gasoline......................................          19,977          $35.70        $713,179        1.104545          22,065          $2,317    Total Alkylate......................................          22,907           42.50         973,548        1.314935          30,121           3,163    Heavy Reformate.....................................          58,164           31.42       1,827,513         .972123          56,542           5,937    Reformer Feed.......................................         100,279           31.42       3,150,766         .972123          97,484          10,235    Raffinates..........................................         170,293           29.55       5,032,158         .914266         155,693          16,348    Jet Fuel............................................         168,433           30.04       5,059,727         .929426         156,546          16,437                                                         -----------------------------------------------------------------------------------------------      Total.............................................         540,053  ..............      16,756,891  ..............         518,451          54,437                                                          ..............  ..............  ..............  ..............             (9)           (10)--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Consumed 518,451x$.105 = $54,437Volumetric Gain 21,602Avg. Value/Barrel Crude Consumed=$16,756,891÷518,451=$32.321 (8)This example shows volumetric gain of 21,602 mbbls. However, in that PF was requested, liquidated duties are only on actual feedstock (class III crude)  used in the refining process. (518,451 @ $.105=$54,437).

VI. Weekly Entry, Monthly Manufacturing Period, and Relative Values Calculated on the Actual Weighted Average Values at the End of the Month.

For example, on the CF 3461 the refiner estimates the following shipments and relative values for the next week and files this on the preceding Friday.

 ----------------------------------------------------------------------------------------------------------------                                                                                     3 Value/                            1 Product                             2 PF shipments      barrel       4 Total value                                                                      (mbbls)        (platts)----------------------------------------------------------------------------------------------------------------Week 1:    Motor Gasoline..............................................          20,000             $35        $700,000    Total Alkylate..............................................          25,000              35         875,000    Heavy Reformate.............................................          60,000              35       2,100,000    Reformer Feed...............................................         110,000              35       3,850,000    Raffinates..................................................         200,000              35       7,000,000    Jet Fuel....................................................         200,000              35       7,000,000                                                                 ----------------                ---------------      Total.....................................................         615,000  ..............     21,525,000----------------------------------------------------------------------------------------------------------------Attributed Feedstock_Class III Crude: 615,000 @ $.105=$64,575 (estimated duties)During the week the refiner actually removes the following products and reports those on the CF 7501 filed  within 10 business days after the CF 3461 is filed. The reported relative values may be an estimate based on  Platts, prior period actual prices, or the refiner's transfer prices. For this example, the estimates are  based on the refiner's actual transfer prices. Listed below are the data to be shown on the weekly CF 7501s  with actual quantities shipped and estimated values for weeks 1-5.
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                                             3 Value/                       5 Relative      6 Feedstock                        1 Product                         2 PF shipments      barrel       4 Total value   value factor      distrib.      7 Liq. duties                                                              (mbbls)       (estimates)       (2)x(3)         (3)/(8)         (5)x(2)      (6)x(10) (9)--------------------------------------------------------------------------------------------------------------------------------------------------------Week 1:    Motor Gasoline......................................          19,977          $35.70        $713,179        1.104545          22,065          $2,317    Total Alkylate......................................          22,907           42.50         973,548        1.314935          30,121           3,163    Heavy Reformate.....................................          58,164           31.42       1,827,513         .972123          56,542           5,937    Reformer Feed.......................................         100,279           31.42       3,150,766         .972123          97,484          10,235    Raffinates..........................................         170,293           29.55       5,032,158         .914266         155,693          16,348    Jet Fuel............................................         168,433           30.04       5,059,727         .929426         156,546          16,437                                                         -----------------------------------------------------------------------------------------------      Total.............................................         540,053  ..............      16,756,891  ..............         518,451         $54,437                                                          ..............  ..............  ..............  ..............             (9)           (10)--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Consumed 518,451x$.105=$54,437Volumetric Gain 21,602Avg. Value/Barrel Crude Consumed=$16,756,891÷518,451=$32.321 (8)
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                               2  PF         3 Value/                        1 Product                            shipments        barrel      4 Total  value    5 Relative      6 Feedstock   7 Liq.  duties                                                              (mbbls)       (estimated)                    value  factor     distrib.--------------------------------------------------------------------------------------------------------------------------------------------------------Week 2:    Motor Gasoline......................................          20,651          $36.90        $762,022        1.145429          23,654          $2,484    Total Alkylate......................................          23,435           44.25       1,036,999        1.373584          32,190           3,380    Heavy Reformate.....................................          59,819           30.35       1,815,507         .942108          56,358           5,918    Reformer Feed.......................................         101,167           30.10       3,045,127         .934347          94,526           9,925    Raffinates..........................................         172,317           29.30       5,048,888         .909514         156,726          16,456    Jet fuel............................................         165,291           30.70       5,074,434         .952972         157,519          16,539                                                         -----------------------------------------------------------------------------------------------      Total.............................................         542,680  ..............     $16,782,977  ..............         520,973         $54,702--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Consumed 520,973x$.105 = $54,702Volumetric Gain 21,707Avg. Value/Barrel Crude Consumed = $32.215
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                               2  PF         3 Value/                        1 Product                            shipments        barrel      4 Total  value    5 Relative      6 Feedstock   7 Liq.  duties                                                              (mbbls)       (estimated)                    value  factor     distrib.--------------------------------------------------------------------------------------------------------------------------------------------------------Week 3:    Motor Gasoline......................................          18,689          $34.90        $652,246        1.091819          20,405          $2,142    Total Alkylate......................................          21,511           40.25         865,818        1.259190          27,087           2,844    Heavy Reformate.....................................          57,371           30.90       1,772,764         .966682          55,460           5,823    Reformer Feed.......................................          99,707           30.90       3,080,946         .966682          96,386          10,121    Raffinates..........................................         168,112           29.65       4,984,521         .927577         155,938          16,374    Jet Fuel............................................         172,092           29.85       5,136,946         .933834         160,707          16,874                                                         -----------------------------------------------------------------------------------------------      Total.............................................         537,482  ..............     $16,493,241  ..............         515,983        $54,178--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Consumed 515,983 x $.105 = $54,178Volumetric Gain 21,499Avg. Value/Barrel Crude Consumed = $31.965
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                               2  PF         3 Value/                        1 Product                            shipments        barrel      4 Total  value    5 Relative      6 Feedstock   7 Liq.  duties                                                              (mbbls)       (estimated)                    value  factor     distrib.--------------------------------------------------------------------------------------------------------------------------------------------------------Week 4:    Motor Gasoline......................................          21,905          $32.85        $719,579        1.027237          22,502          $2,363    Total Alkylate......................................          22,552           38.75         873,890        1.211733          27,327           2,869    Heavy Reformate.....................................          58,116           29.60       1,720,234        0.925607          53,791           5,648    Reformer Feed.......................................         101,058           29.40       2,971,105        0.919353          92,908           9,755    Raffinates..........................................         169,823           30.15       5,120,163        0.942806         160,110          16,812    Jet Fuel............................................         171,493           31.05       5,324,858        0.970949         166,511          17,484                                                         -----------------------------------------------------------------------------------------------      Total.............................................         544,947  ..............     $16,729,829  ..............         523,149         $54,931--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Consumed 523,149 x $.105 = $54,931Gain 21,798Avg. Value/Barrel Crude Consumed = $31.979
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                               2  PF         3 Value/                        1 Product                            shipments        barrel      4 Total  value    5 Relative      6 Feedstock   7 Liq.  duties                                                              (mbbls)       (estimated)                    value  factor     distrib.--------------------------------------------------------------------------------------------------------------------------------------------------------Week 5:    Motor Gasoline......................................           8,990          $37.25        $334,878        1.136260          10,215          $1,073    Total Alkylate......................................           9,984           45.10         450,278        1.375713          13,735           1,442    Heavy Reformate.....................................          25,351           31.50         798,557        0.960864          24,360           2,558    Reformer Feed.......................................          43,492           31.35       1,363,474        0.956288          41,592           4,367    Raffinates..........................................          75,172           29.95       2,251,401        0.913583          68,677           7,211    Jet fuel............................................          75,795           30.56       2,316,295        0.932190          70,654           7,418                                                         -----------------------------------------------------------------------------------------------      Total.............................................         238,784  ..............      $7,514,883  ..............         229,233        $24,069--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Consumed 229,233 x $.105 = $24,069Gain 9,551Avg. Value/Barrel Crude Consumed = $32.783As provided in the regulations, the refiner files an amended CF 7501 for each week based on the refiner's actual weighted average values for the month,  as shown below.
 ------------------------------------------------------------------------                                                                Value/                          Product                               barrel                                                               (MBBLS)------------------------------------------------------------------------Month End:    Motor Gasoline.........................................       $35.27    Total Alkylate.........................................        41.84    Heavy Reformate........................................        30.66    Reformer Feed..........................................        30.54    Raffinates.............................................        29.69    Jet Fuel...............................................        30.42------------------------------------------------------------------------
                                        Reconciliation of Week 1 Using Month's End Actual Weighted Average Values--------------------------------------------------------------------------------------------------------------------------------------------------------                                                                                                                                            7  Amended                                                               2  PF         3  Value/       4  Total       5  Relative    6  Feedstock      wt. avg.                       1  Product                            shipments     barrel  (wt.   value  (2)x(3)   value  factor      distri.         duties                                                              (mbbls)      avg.)  actual                      (3)/(8)         (5)x(2)      (6)x(10)  (9)--------------------------------------------------------------------------------------------------------------------------------------------------------Motor Gasoline..........................................          19,977          $35.27        $704,589        1.095716          21,889          $2,298Total Alkylate..........................................          22,907           41.84         958,429        1.299823          29,775           3,126Heavy Reformate.........................................          58,164           30.66       1,783,308         .952499          55,401           5,817Reformer Feed...........................................         100,279           30.54       3,062,521         .948771          95,141           9,990Raffinates..............................................         170,293           29.69       5,055,999         .922365         157,072          16,493Jet Fuel................................................         168,433           30.42       5,123,732         .945043         159,176          16,713                                                         -----------------------------------------------------------------------------------------------    Total...............................................         540,053  ..............     $16,688,578  ..............         518,454          54,437                                                          ..............  ..............  ..............  ..............             (9)            (10)--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Consumed = 518,454 x $.105 = $54,437Volumetric Gain 21,599Avg.Value/Bbl Crude Consumed = $16,688,578 ÷ 518,454 = $32.189 (8)Note: No change in amended total duties, because duty is computed on total quantity of class III crude used. The difference is amongst the various  products, i.e., estimated weekly CF 7501 duties paid for Motor Gasoline was $2,317, while the reconciled amount as shown above is $2,298. Additional  duties owed or refunds due would depend on the reconciliation of the weekly entry as an entirety.

VII. Weekly entry, monthly manufacturing period, relative values calculated on prior manufacturing period's actual weighted average values. The prior period (PP) values are set forth below:

 ------------------------------------------------------------------------                                                           Value/Barrel                         Product                            (wt. avg.)------------------------------------------------------------------------Motor Gasoline..........................................    § 35.28Total Alkylate..........................................           41.90Heavy Reformate.........................................           31.78Reformer Feed...........................................           30.02Raffinates..............................................           31.10Jet Fuel................................................           28.80------------------------------------------------------------------------Thereafter, the information provided or both the CF 3461 and CF 7501  filed for each weekly entry with respect to relative values would  remain the same. The only estimated amount would be the quantity to be  removed on the CF 3461 as shown below. On the CF 3461 the refiner  estimates the following shipments and uses a prior manufacturing  period's actual weighted average values.
 ----------------------------------------------------------------------------------------------------------------                                                                       2  PF         3  Value/                           1  Product                                shipments     barrel  (PP)      4  Total                                                                      (mbbls)       (wt. avg.)         value----------------------------------------------------------------------------------------------------------------Week 1    Motor Gasoline..............................................          20,000          $35.28        $705,600    Total Alkylate..............................................          25,000           41.90       1,047,500    Heavy Reformate.............................................          60,000           31.78       1,906,800    Reformer Feed...............................................         110,000           30.02       3,302,200    Raffinates..................................................         200,000           31.10       6,220,000    Jet Fuel....................................................         200,000           28.80       5,760,000                                                                 -----------------------------------------------      Total.....................................................         615,000  ..............      18,942,100----------------------------------------------------------------------------------------------------------------Attributed Feedstock_Class III Crude: 615,000 @ $.105 = $64,575 (estimated duties)On the CF 7501, the refiner reports the following shipments and uses a prior manufacturing period's actual  average values.
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                               2  PF         3  Value/                      5  Relative    6  Feedstock       7  Liq.                       1  Product                            shipments     barrel  (PP)      4  Total      value  factor      distri.         duties                                                              (mbbls)       (wt. avg.)    value  (2)x(3)      (3)/(8)         (5)x(2)      (6)x(10)  (9)--------------------------------------------------------------------------------------------------------------------------------------------------------Week 1:    Motor Gasoline......................................          19,977          $35.28        $704,789        1.097219          21,919          $2,902    Total Alkylate......................................          22,907           41.90         959,803        1.303104          29,850           3,134    Heavy Reformate.....................................          58,164           31.78       1,848,452         .988368          57,486           6,036    Reformer Feed.......................................         100,279           30.02       3,010,376         .933632          93,623           9,830    Raffinates..........................................         170,293           31.10       5,296,112         .967220         164,710          17,295    Jet Fuel............................................         168,433           28.80       4,850,870         .895689         150,863          15,840                                                         -----------------------------------------------------------------------------------------------      Total.............................................         540,053  ..............     $16,670,402  ..............         518,451         $54,437                                                          ..............  ..............  ..............  ..............             (9)            (10)--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Used 518,451 x $.105 = $54,437Volumetric Gain 21,602Avg. Value/Barrel Crude Used = $16,670,402 ÷ 518,451 = $32.154 (8)
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                               2  PF         3  Value/                       1  Product                            shipments     barrel  (PP)      4  Total       5  Relative    6  Feedstock       7  Liq.                                                              (mbbls)       (wt. avg.)         value       value  factor      distri.         duties--------------------------------------------------------------------------------------------------------------------------------------------------------Week 2:    Motor Gasoline......................................          20,651          $35.28        $728,567        1.096128          22,636          $2,377    Total Alkylate......................................          23,435           41.90         981,926        1.301808          30,508           3,203    Heavy Reformate.....................................          59,819           31.78       1,901,048         .987386          59,064           6,202    Reformer Feed.......................................         101,167           30.02       3,037,033         .932704          94,359           9,908    Raffinates..........................................         172,317           31.10       5,359,059         .966259         166,503          17,483    Jet Fuel............................................         165,291           28.80       4,760,381         .894799         147,903          15,529                                                         -----------------------------------------------------------------------------------------------      Total.............................................         542,680  ..............      16,768,014  ..............         520,973          54,702--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Used 520,973x$.105=$54,702Volumetric Gain 21,707Avg. Value/Barrel Crude Used=$32.186
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                               2  PF         3  Value/                       1  Product                            shipments     barrel  (PP)      4  Total       5  Relative    6  Feedstock   7  Liq. duties                                                              (mbbls)       (wt. avg.)         value       value  factor      distri.--------------------------------------------------------------------------------------------------------------------------------------------------------Week 3:    Motor Gasoline......................................          18,689          $35.28        $659,348        1.099168          20,542          $2,157    Total Alkylate......................................          21,511           41.90         901,311        1.305418          28,081           2,948    Heavy Reformate.....................................          57,371           31.78       1,823,250         .990124          56,803           5,964    Reformer Feed.......................................          99,707           30.02       2,993,204         .935290          93,254           9,792    Raffinates..........................................         168,112           31.10       5,228,283         .968938         162,889          17,103    Jet Fuel............................................         172,092           28.80       4,956,250         .897280         154,414          16,214                                                         -----------------------------------------------------------------------------------------------      Total.............................................         537,482  ..............      16,561,646  ..............         515,983          54,178--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Used 515,983x$.105=$54,178Volumetric Gain 21,499Avg. Value/Barrel Crude Used=$32.097
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                               2  PF         3  Value/                       1  Product                            shipments     barrel  (PP)      4  Total       5  Relative    6  Feedstock       7  Liq.                                                              (mbbls)       (wt. avg.)         value       value  factor      distri.         duties--------------------------------------------------------------------------------------------------------------------------------------------------------Week 4:    Motor Gasoline......................................          21,905          $35.28        $772,808        1.097390          24,038          $2,524    Total Alkylate......................................          22,552           41.90         944,929        1.303306          29,391           3,086    Heavy Reformate.....................................          58,116           31.78       1,846,926         .988522          57,447           6,032    Reformer Feed.......................................         101,058           30.02       3,033,761         .933777          94,365           9,908    Raffinates..........................................         169,823           31.10       5,281,495         .967371         164,281          17,250    Jet Fuel............................................         171,493           28.80       4,938,998         .895829         153,627          16,131                                                         -----------------------------------------------------------------------------------------------      Total.............................................         544,947  ..............      16,818,917  ..............         523,149          54,931--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Used 523,149x$.105=$54,931Volumetric Gain 21,798Avg. Value/Barrel Crude Used=$32.149
 --------------------------------------------------------------------------------------------------------------------------------------------------------                                                               2  PF         3  Value/                       1  Product                            shipments     barrel  (PP)      4  Total       5  Relative    6  Feedstock       7  Liq.                                                              (mbbls)       (wt. avg.)         value       value  factor      distri.         duties--------------------------------------------------------------------------------------------------------------------------------------------------------Week 5:    Motor Gasoline......................................           8,990          $35.28        $317,167        1.097698           9,868          $1,036    Total Alkylate......................................           9,984           41.90         418,330        1.303671          13,016           1,367    Heavy Reformate.....................................          25,351           31.78         805,655         .988799          25,067           2,632    Reformer Feed.......................................          43,492           30.02       1,305,630         .934039          40,623           4,265    Raffinates..........................................          75,172           31.10       2,337,849         .967642          72,740           7,638    Jet Fuel............................................          75,795           28.80       2,182,896         .896080          67,919           7,131                                                         -----------------------------------------------------------------------------------------------      Total.............................................         238,784  ..............       7,367,527  ..............         229,233          24,069--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Used 229,233x$.105=$24,069Volumetric Gain 9,551Avg. Value/Barrel Crude Used=$32.14At the end of the month, the refiner must calculate its actual weighted average values for use in the subsequent period.
                                               Reconciliation of Relative Value for the Subsequent Period--------------------------------------------------------------------------------------------------------------------------------------------------------                                                               2  PF         3  Value/                      5  Relative                       7  Liq.                       1  Product                            shipments     barrel  (PP)      4  Total      value  factor   6  Feedstock       duties                                                              (mbbls)       (wt. avg.)     value  (2x3)       (3)/(8)     distri.  (5x2)   (6x(10)  (9)--------------------------------------------------------------------------------------------------------------------------------------------------------Month End:    Motor Gasoline......................................          90,212          $35.27      $3,181,777        1.095682          98,844         $10,379    Total Alkylate......................................         100,389           41.84       4,200,276        1.299783         130,484          13,701    Heavy Reformate.....................................         258,821           30.66       7,935,452         .952470         246,519          25,885    Reformer Feed.......................................         445,703           30.54      13,611,770         .948742         422,857          44,400    Raffinates..........................................         755,717           29.69      22,437,238         .922336         697,025          73,188    Jet Fuel............................................         753,104           30.42      22,909,424         .945014         711,694          74,726                                                         -----------------------------------------------------------------------------------------------      Total.............................................       2,403,946  ..............      74,275,937  ..............       2,307,423         242,279                                                          ..............  ..............  ..............  ..............             (9)            (10)--------------------------------------------------------------------------------------------------------------------------------------------------------Class III Crude Used 2,307,423x$.105=$242,279Volumetric Gain 96,523Avg. Value/Barrel Crude Used=$74,275,937÷2,307,423=$32.19 (8)Note: Actual monthly reconciliation data could result in attributions on a product basis that are less than or greater than weekly distributions. This  is due to the ``weighing'' of the data i.e., motor gasoline on a weekly basis was $10,996 as compared to $10,379 as above. No additional duties are  due to the averaging.

























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