Free Memorandum - District Court of Federal Claims - federal

Case 1:99-cv-00550-ECH

Document 257-3

Filed 11/17/2006

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Attachment 1

Osage Tribe v. The United States of America Analysis Summary

Tranche One Month

The United States' Trial Calculation Revised for Price Controls and Offered Prices

The United States' Trial Calculation Revised for Price Controls, Offered Prices and MMS 2014 Data

Calculated Difference Jan-76 May-79 Nov-80 Feb-86 Jul-89 TOTAL $66,857 $38,824 $65,023 $2,768 $427 $173,899

Calculated Difference and Lost Calculated Interest through Difference and Lost Next Quarterly Interest through Annuity (1) 12/31/2006 (2) $66,999 $38,945 $65,390 $2,775 $430 $174,539 $541,189 $241,875 $343,050 $8,254 $980 $1,135,348

Calculated Difference $66,857 $38,824 $65,023 $2,768 $4,707 $178,179

Calculated Difference and Lost Calculated Interest through Difference and Lost Next Quarterly Interest through Annuity (1) 12/31/2006 (2) $66,999 $38,945 $65,390 $2,775 $4,748 $178,856 $541,189 $241,875 $343,050 $8,254 $10,809 $1,145,178

(1) Calculated difference and lost interest based on a combined investment rate using 80% of the annualized 3-Month Certificate of Deposit discount rate and 20% of the annualized 3-Month U.S. Treasury Note discount rate as published by the Federal Reserve and ending on the first date of the next quarterly annuity payment which occurred on 3/15/1976 for January 1976, 6/12/1979 for May 1979, 12/12/1980 for November 1980, 3/13/1986 for February 1986, and 9/7/1989 for July 1989. (2) Calculated difference and lost interest based on a combined investment rate using 80% of the annualized 3-Month Certificate of Deposit discount rate and 20% of the annualized 3-Month U.S. Treasury Note discount rate as published by the Federal Reserve or the actual return on the 7386/7886 account, if higher, as determined on a fiscal year basis.

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Case 1:99-cv-00550-ECH
A Tranche One Month B C Royalty Rate D Volume (Bbls) E Weighted Average Gravity

Revised Trial Exhibit E - Calculated Difference
F Highest posted or Offered Price G Reported Price Paid H Calculated Royalty Price I

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J K Calculated Difference L

Attachment 2
M

Tranche One Lease

Calculated Royalty Due

Reported Royalty Paid

Calculated Calculated Difference and Difference and Interest2 Interest1 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 174,539 3,031 3 68 14,168 38,614 11,114 66,999 3,300 15 16 23,905 11,709 38,945 372 1 88 9 30,390 23,267 11,186 76 0 1 65,390 2,707 67 2,775 71 13 194 7 16 129 430 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 1,135,348 24,485 24 549 114,445 311,908 89,778 541,189 20,494 93 99 148,469 72,720 241,875 1,952 4 461 49 159,430 122,062 58,686 400 0 6 343,050 8,054 201 8,254 161 29 442 17 37 294 980

TOTAL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
1,2

763,495 12.50% 16.67% 12.50% 16.67% 12.50% 12.50% 16.67% 0 12.50% 16.67% 12.50% 12.50% 16.67% 16.67% 12.50% 0 12.50% 16.67% 12.50% 16.67% 12.50% 12.50% 12.50% 16.67% 16.67% 16.67% 12.50% 12.50% 16.67% 0 12.50% 16.67% 12.50% 12.50% 16.67% 12.50% 16.67% 0 12.50% 16.67% 12.50% 12.50% 16.67% 12.50% 16.67% 160,738 120 3,030 10,434 37,916 347 8,181 139,506 90 2,067 22,908 11,640 5,254 346 88,379 149 21,142 126 4,990 1,233 11,753 4,761 3,245 3,323 12,038 5,499 177 79,699 112 13,987 18,600 14,322 3,196 35,459 175 5,601 18,360 13,395 1,198 38.8 38.8 35.1 38.7 38.7 41.1 44.0 38.8 38.8 35.1 38.7 38.7 41.1 44.0 38.8 38.8 38.8 38.8 38.8 35.1 38.7 38.7 38.7 38.7 38.7 41.1 44.0 38.8 38.8 35.1 40.0 38.5 41.1 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 13.46 13.46 13.40 13.46 13.46 13.50 13.50 19.31 19.31 19.25 19.32 19.31 19.35 19.35 36.00 36.00 36.00 36.00 36.00 35.94 36.00 36.00 36.00 36.00 36.00 36.04 36.04 20.61 20.61 20.17 20.77 20.48 23.75 19.68 19.68 19.67 19.68 19.68 20.00 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 13.31 13.31 13.22 5.33 5.33 13.50 5.37 19.12 18.31 19.19 19.32 7.03 6.02 25.80 36.04 52.83 35.86 35.96 35.86 35.88 15.43 6.84 15.43 35.86 36.00 48.00 36.00 20.71 20.70 18.63 20.74 20.54 24.69 19.66 19.25 19.40 19.68 19.68 19.36 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 13.46 13.46 13.40 13.46 13.46 13.50 13.50 19.31 19.31 19.25 19.32 19.31 19.35 25.80 36.04 52.83 36.00 36.00 36.00 35.94 36.00 36.00 36.00 36.00 36.00 48.00 36.04 20.71 20.70 20.17 20.77 20.54 24.69 19.68 19.68 19.67 19.68 19.68 20.00

$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

2,111,110 270,442 269 5,075 23,407 63,794 586 18,408 336,734 290 4,973 55,308 37,461 16,944 1,115 398,187 1,316 95,139 756 22,455 5,538 52,887 28,564 19,468 19,941 54,172 32,993 1,064 206,312 386 35,266 48,290 49,034 9,866 87,229 573 13,771 45,165 43,943 3,992

$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

1,937,211 267,418 266 5,007 9,269 25,262 586 7,317 333,444 275 4,957 55,308 13,630 5,271 1,115 398,187 1,316 94,769 755 22,368 5,529 22,668 5,427 8,344 19,865 54,172 32,993 1,062 206,312 386 32,565 48,223 49,034 9,866 87,159 560 13,579 45,158 43,926 3,865

$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

173,899 3,025 3 68 14,138 38,532 11,091 66,857 3,290 15 16 23,831 11,672 38,824 370 1 87 9 30,219 23,136 11,124 76 0 1 65,023 2,701 67 2,768 70 13 192 7 16 128 427

Jan-76 Jan-76 Jan-76 Jan-76 Jan-76 Jan-76 Jan-76 Jan-00 May-79 May-79 May-79 May-79 May-79 May-79 May-79 Jan-00 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Jan-00 Feb-86 Feb-86 Feb-86 Feb-86 Feb-86 Feb-86 Feb-86 Jan-00 Jul-89 Jul-89 Jul-89 Jul-89 Jul-89 Jul-89 Jul-89

North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Burbank Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit Osage Hominy Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit

38.8 38.8 34.2 39.5 37.7 44.0

For description of the interest methodologies see Attachment 1.

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Case 1:99-cv-00550-ECH Document E - Calculated Difference 257-3 Filed 11/17/2006 Revised Trial Exhibit
Corrected East Hardy Royalty Rate
A Tranche One Month B C Royalty Rate D Volume (Bbls) E Weighted Average Gravity F Highest posted or Offered Price G Reported Price Paid H Calculated Royalty Price I Calculated Royalty Due

Page 6 of 18
J K Calculated Difference L

Attachment 4
M

Tranche One Lease

Reported Royalty Paid

Calculated Calculated Difference and Difference and Interest2 Interest1 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 177,249 3,031 3 68 14,168 38,614 11,114 66,999 3,300 15 16 23,905 11,709 0 38,945 372 1 88 9 30,390 23,267 11,186 76 0 37 1 65,427 2,655 0 2,793 5,448 71 13 194 7 16 129 430 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 1,143,495 24,485 24 549 114,445 311,908 89,778 541,189 20,494 93 99 148,469 72,720 0 241,875 1,952 4 461 49 159,430 122,062 58,686 400 0 193 6 343,243 7,897 0 8,310 16,208 161 29 442 17 37 294 980

TOTAL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
1,2

763,495 12.50% 16.67% 12.50% 16.67% 12.50% 12.50% 16.67% 0 12.50% 16.67% 12.50% 12.50% 16.67% 16.67% 16.67% 0 12.50% 16.67% 12.50% 16.67% 12.50% 12.50% 12.50% 16.67% 16.67% 16.67% 12.50% 16.67% 16.67% 0 12.50% 16.67% 12.50% 12.50% 16.67% 16.67% 16.67% 0 12.50% 16.67% 12.50% 12.50% 16.67% 16.67% 16.67% 160,738 120 3,030 10,434 37,916 347 8,181 139,506 90 2,067 22,908 11,640 5,254 346 88,379 149 21,142 126 4,990 1,233 11,753 4,761 3,245 3,323 12,038 5,499 177 79,699 112 13,987 18,600 14,322 3,196 35,459 175 5,601 18,360 13,395 1,198 38.8 38.8 35.1 38.7 38.7 41.1 44.0 38.8 38.8 35.1 38.7 38.7 41.1 44.0 38.8 38.8 38.8 38.8 38.8 35.1 38.7 38.7 38.7 38.7 38.7 41.1 44.0 38.8 38.8 35.1 40.0 38.5 41.1 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 13.46 13.46 13.40 13.46 13.46 13.50 13.50 19.31 19.31 19.25 19.32 19.31 19.35 19.35 36.00 36.00 36.00 36.00 36.00 35.94 36.00 36.00 36.00 36.00 36.00 36.04 36.04 20.58 20.58 20.14 20.74 20.45 23.75 19.68 19.68 19.67 19.68 19.68 20.00 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 13.31 13.31 13.22 5.33 5.33 13.50 5.37 19.12 18.31 19.19 19.32 7.03 6.02 19.35 36.04 52.83 35.86 35.96 35.86 35.88 15.43 6.84 15.43 35.86 36.00 36.00 36.00 20.71 20.70 18.63 20.74 20.54 18.52 19.66 19.25 19.40 19.68 19.68 19.36 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 13.46 13.46 13.40 13.46 13.46 13.50 13.50 19.31 19.31 19.25 19.32 19.31 19.35 19.35 36.04 52.83 36.00 36.00 36.00 35.94 36.00 36.00 36.00 36.00 36.00 36.04 36.04 20.71 20.70 20.14 20.74 20.54 23.75 19.68 19.68 19.67 19.68 19.68 20.00

$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

2,113,814 270,442 269 5,075 23,407 63,794 586 18,408 336,734 290 4,973 55,308 37,461 16,944 1,115 398,187 1,316 95,139 756 22,455 5,538 52,887 28,564 19,468 19,941 54,172 33,030 1,064 206,312 386 35,213 48,223 49,034 12,652 87,229 573 13,771 45,165 43,943 3,992

$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

1,937,211 267,418 266 5,007 9,269 25,262 586 7,317 333,444 275 4,957 55,308 13,630 5,271 1,115 398,187 1,316 94,769 755 22,368 5,529 22,668 5,427 8,344 19,865 54,172 32,993 1,062 206,312 386 32,565 48,223 49,034 9,866 87,159 560 13,579 45,158 43,926 3,865

$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

176,602 3,025 3 68 14,138 38,532 11,091 66,857 3,290 15 16 23,831 11,672 0 38,824 370 1 87 9 30,219 23,136 11,124 76 0 37 1 65,060 2,648 0 2,787 5,435 70 13 192 7 16 128 427

Jan-76 Jan-76 Jan-76 Jan-76 Jan-76 Jan-76 Jan-76 Jan-00 May-79 May-79 May-79 May-79 May-79 May-79 May-79 Jan-00 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Nov-80 Jan-00 Feb-86 Feb-86 Feb-86 Feb-86 Feb-86 Feb-86 Feb-86 Jan-00 Jul-89 Jul-89 Jul-89 Jul-89 Jul-89 Jul-89 Jul-89

North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Burbank Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit Osage Hominy Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit

38.8 38.8 34.2 39.5 37.7 44.0

For description of the interest methodologies see Attachment 1.

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Attachment 8 Sales Volume 110.70 83.92 28.06 44.43 59.02 115.40 0.03 199.94 178.34 178.34 371.39 81.56 38.52 0.01 75.17 129.09 69.52 546.32 148.11 162.10 235.66 110.95 64.97 4.54 169.10 16.56 11.04 157.15 11.53 6.09 66.57 727.60 2.24 9.92 167.50 0.64 6.24 42.72 161.40 1,579.44 140.08 325.29 595.52 1,697.52 41.83 11.42 552.56 Royalty Value Less Allowances $ 82.38 $ 187.07 $ 57.49 $ 233.94 $ 310.62 $ 417.58 $ 0.10 $ 674.67 $ 240.78 $ 227.58 $ 147.98 $ 306.02 $ 155.63 $ 0.05 $ 105.24 $ 361.41 $ 194.37 $ 1,522.91 $ 659.14 $ 719.72 $ 869.66 $ 306.50 $ 179.48 $ 12.49 $ 744.04 $ 45.46 $ 30.29 $ 688.94 $ 31.34 $ 26.19 $ 178.90 $ 3,120.76 $ 5.99 $ 26.52 $ 445.76 $ 1.70 $ 16.45 $ 112.59 $ 680.38 $ 3,624.14 $ 366.31 $ 1,360.38 $ 1,556.00 $ 4,432.72 $ 109.22 $ 29.81 $ 1,440.52 Calculated Royalty Rate 0.0208 0.0625 0.0625 0.1667 0.1667 0.1324 0.1235 0.1250 0.0510 0.0482 0.0156 0.1501 0.1667 0.2083 0.0625 0.1250 0.1250 0.1250 0.2000 0.2000 0.1667 0.1250 0.1250 0.1250 0.2000 0.1250 0.1250 0.2000 0.1250 0.2000 0.1250 0.2000 0.1250 0.1250 0.1250 0.1250 0.1250 0.1250 0.2000 0.1094 0.1250 0.2000 0.1250 0.1250 0.1250 0.1250 0.1250 Calculated Unit Value $ 35.72 $ 35.67 $ 32.78 $ 31.59 $ 31.58 $ 27.33 $ 27.00 $ 27.00 $ 26.47 $ 26.47 $ 25.50 $ 24.99 $ 24.24 $ 24.00 $ 22.40 $ 22.40 $ 22.37 $ 22.30 $ 22.25 $ 22.20 $ 22.14 $ 22.10 $ 22.10 $ 22.01 $ 22.00 $ 21.96 $ 21.95 $ 21.92 $ 21.75 $ 21.50 $ 21.50 $ 21.45 $ 21.39 $ 21.39 $ 21.29 $ 21.25 $ 21.09 $ 21.08 $ 21.08 $ 20.98 $ 20.92 $ 20.91 $ 20.90 $ 20.89 $ 20.89 $ 20.88 $ 20.86

February 1986 MMS 2014 Data Reason For Exclusion* 1,2,3 1,2,3 1,2,3 1,2,4 1,2,4 1,2,3,4 1,2,3,5 1,7 1,3 1,3 1,3 1,2,3,4 1,2 1,2,3,5 2,3 2 1,2 1 2 1,2 1 2 2 1,2 2 1,2 1,2 1,2 1,2 1,2 2 1 2 1,2 1,2 2,5 2 2 2 1,3 1,2 1 1 1 2 1,2 1 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

ID Lease Number Payor Id 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 6010464760 6020017990 6010477060 5180059490 5180059500 5180062110 0294675980 0295568770 5180078120 5180078110 1491469800 5180062100 5030073210 6070605010 6020040530 6010384210 6010071750 6010079070 5180078610 5110014370 5180058030 1490299330 0470335360 1430285010 5110015420 5180009560 5180019730 5030077950 5100158920 0300594100 5050458900 5110015360 6010451060 0300229580 6010193990 6010475990 6010422060 6010002530 6150035030 6010468210 5030077630 5030078600 1430250080 6010064380 6010467500 0300172560 6010464590 42545 42545 42545 72615 72615 72615 44420 33990 28085 28085 25143 72615 11270 73855 33410 38553 11270 11270 33410 49320 77930 17550 17550 22200 38257 50400 50400 39832 72145 10900 17550 11270 44730 72615 39832 38553 38553 13627 13627 42545 23385 73755 10860 11270 50430 11110 39832

Company Name OSAGE CRUDE OIL PURCHASING INC OSAGE CRUDE OIL PURCHASING INC OSAGE CRUDE OIL PURCHASING INC TXO C-O MARATHON OIL COMPANY TXO C-O MARATHON OIL COMPANY TXO C-O MARATHON OIL COMPANY PLAINS MARKETING, L.P. PLAINS RESOURCES, INC. HAZLEWOOD OIL AND GAS CO., INC HAZLEWOOD OIL AND GAS CO., INC B & G PRODUCTION TXO C-O MARATHON OIL COMPANY BP AMERICA PRODUCTION COMPANY APACHE CORP -INVALIDKERR MCGEE REFINING CORP. EXXON MOBIL CORPORATION BP AMERICA PRODUCTION COMPANY BP AMERICA PRODUCTION COMPANY KERR MCGEE REFINING CORP. SERVICE DRILLING CO SONAT EXPLORATION CONOCO INCORPORATED CONOCO INCORPORATED EXXON MOBIL CORP MID PLAINS PETROLEUM CO. TEXACO EXPLR & PROD INC (TEPI) TEXACO EXPLR & PROD INC (TEPI) ORYX ENERGY COMPANY TOTAL PETROLEUM, INC.-OIL CHESAPEAKE OPERATING COMPANY CONOCO INCORPORATED BP AMERICA PRODUCTION COMPANY PHILLIPS PETROLEUM CO. TXO C-O MARATHON OIL COMPANY ORYX ENERGY COMPANY EXXON MOBIL CORPORATION EXXON MOBIL CORPORATION BIGHEART PIPE LINE CORPORATION BIGHEART PIPE LINE CORPORATION OSAGE CRUDE OIL PURCHASING INC F.C.D. OIL CORPORATION UNION OIL COMPANY OF CALIF BP AMERICA PRODUCTION COMPANY BP AMERICA PRODUCTION COMPANY TEXACO TRADING&TRANSPORTATION APACHE CORPORATION ORYX ENERGY COMPANY

State Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma

Product Oil Oil Oil Condensate Condensate Condensate Condensate Oil Condensate Condensate Oil Condensate Oil Condensate Oil Condensate Oil Oil Oil Oil Oil Condensate Condensate Condensate Oil Condensate Condensate Oil Oil Condensate Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil Condensate Oil

Sale Value 3,954.12 2,993.11 919.79 1,403.66 1,863.71 3,153.63 0.81 5,397.38 4,719.77 4,719.77 9,470.45 2,038.50 933.78 0.24 1,683.81 2,891.33 1,554.96 12,183.28 3,295.67 3,598.62 5,217.95 2,451.99 1,435.84 99.92 3,720.20 363.68 242.32 3,444.73 250.78 130.95 1,431.19 15,603.80 47.92 212.19 3,566.08 13.60 131.58 900.72 3,401.90 33,134.98 2,930.52 6,801.86 12,447.98 35,461.76 873.76 238.46 11,524.10

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Attachment 8 Sales Volume 231.25 443.45 15.12 157.76 13.04 41.51 22.90 101.49 277.83 Royalty Value Less Allowances $ 964.27 $ 1,848.99 $ 39.01 $ 392.16 $ 53.61 $ 106.23 $ 58.58 $ 259.17 $ 709.41 Calculated Royalty Rate 0.2000 0.2000 0.1250 0.1205 0.2000 0.1250 0.1250 0.1250 0.1250 Calculated Unit Value $ 20.85 $ 20.85 $ 20.64 $ 20.64 $ 20.56 $ 20.47 $ 20.47 $ 20.43 $ 20.43

February 1986 MMS 2014 Data Reason For Exclusion* 1 1 2 2,3 1,2 2 1,2 2 $ $ $ $ $ $ $ $ $

ID Lease Number Payor Id 48 49 50 51 52 53 54 55 56 5180081460 5180081450 6010451230 6010044250 5030080250 6010462560 0300155280 6010384210 6010107200 10860 10860 44730 17940 48905 38553 17900 38553 38553

Company Name BP AMERICA PRODUCTION COMPANY BP AMERICA PRODUCTION COMPANY PHILLIPS PETROLEUM CO. COFFEYVILLE RES CRUDE TRNS LLC SANTA FE MINERALS EASTERN REG. EXXON MOBIL CORPORATION COX OIL AND GAS EXXON MOBIL CORPORATION EXXON MOBIL CORPORATION

State Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma

Product Oil Oil Oil Oil Oil Oil Oil Oil Oil

Sale Value 4,821.07 9,244.97 312.08 3,255.60 268.04 849.88 468.65 2,073.46 5,675.22

* Other exclusions may apply. Exclusion Codes Code 1 2 3 4 5 6 7 Description Not a major purchaser Appears to be a DOD Incorrect royalty rate Incorrect adjustment Small volume (less than 1 barrel per day) Sales value Other data anomaly

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Attachment 9 Royalty Value Less Allowances $ 58.56 $ 43.48 $ 403.17 $ 0.61 $ 0.49 $ 174.22 $ 0.46 $ 52.83 $ 251.01 $ 239.44 $ 110.57 $ 26.95 $ 1,366.62 $ 1.48 $ 1.48 $ 1.48 $ 1.05 $ 3.05 $ 12.08 $ 4.28 $ 95.66 $ 41.01 $ 2.81 $ 75.78 $ 89.81 $ 61.75 $ 85.41 $ 158.54 $ 52.27 $ 326.74 $ 61.98 $ 25.03 $ 702.96 $ 342.89 $ 77.95 $ 670.56 $ 663.59 $ 407.63 $ 517.76 $ 94.94 $ 284.13 $ 716.95 $ 309.65 $ 300.91 $ 15.75 $ 432.02 $ 185.42 $ 98.74 $ 736.01 $ 110.05 Calculated Unit Value $ 2,928.00 $ 38.48 $ 34.79 $ 30.50 $ 24.50 $ 23.87 $ 23.00 $ 22.84 $ 22.20 $ 21.42 $ 21.23 $ 21.22 $ 21.16 $ 21.14 $ 21.14 $ 21.14 $ 21.00 $ 20.58 $ 20.57 $ 20.38 $ 20.37 $ 20.35 $ 20.33 $ 20.31 $ 20.30 $ 20.30 $ 20.29 $ 20.27 $ 20.26 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.25

July 1989 MMS 2014 Data

ID Lease Number Payor Id 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 6010456770 6020027220 6150049350 6010452400 0300446230 5030076960 5030082800 5180070410 0290194300 0300269410 5180069990 5180069980 0470687360 6070280570 6070280570 6070280570 0291614370 6010447630 0470626390 6070316740 5030069160 5180048480 5180072640 5180078640 5180078630 5180071980 029467439B 0300098300 0300300740 0295538620 5180072390 5180073250 6070614270 5030077340 5030072120 5030077950 5180089580 6010051910 6150039230 6020040530 5100002730 5050512370 6020012870 6020055770 0470861880 6020012150 6020021140 0291217930 6070334820 5100002700 41463 17100 39831 44730 72615 31860 29251 16917 72145 44645 11110 11110 44724 37930 44640 37931 72615 38553 46473 50210 72145 39832 33010 33010 33010 33010 48720 36648 72615 39831 33796 33796 10317 72145 31150 39831 39831 33410 33410 33410 39831 33410 33410 33410 17812 33410 39831 39831 10317 39831

Company Name TEXACO EXPLR & PROD INC (TEPI) EL PASO PRODUCTION OIL & GAS C SUNOCO, INC (R&M) PHILLIPS PETROLEUM CO. TXO C-O MARATHON OIL COMPANY L.E. JONES OPERATING, INC. MUSTANG FUEL CORPORATION CITGO PETROLEUM CORP. TOTAL PETROLEUM, INC.-OIL BRADMAR PETROLEUM CORPORATION APACHE CORPORATION APACHE CORPORATION GENESIS CRUDE OIL, L. P. MCMAHON, C. L., JR. PETROLEUM INTERNATIONAL INC. GENTRY BOBBIE LOU LIVING TRUST TXO C-O MARATHON OIL COMPANY EXXON MOBIL CORPORATION QUINTANA PETROLEUM CORPORATION BURLINGTON RESOURCES OIL & GAS TOTAL PETROLEUM, INC.-OIL ORYX ENERGY COMPANY KAISER-FRANCIS OIL COMPANY KAISER-FRANCIS OIL COMPANY KAISER-FRANCIS OIL COMPANY KAISER-FRANCIS OIL COMPANY PACIFIC ENTERPRISES ROYALTY CO RAM ASSET MANAGEMENT-RAM GROUP TXO C-O MARATHON OIL COMPANY SUNOCO, INC (R&M) FLINT HILLS RESOURCES FLINT HILLS RESOURCES NATIONAL ENRGY GROUP INC TOTAL PETROLEUM, INC.-OIL NOVA ENERGY CORPORATION SUNOCO, INC (R&M) SUNOCO, INC (R&M) KERR MCGEE REFINING CORP. KERR MCGEE REFINING CORP. KERR MCGEE REFINING CORP. SUNOCO, INC (R&M) KERR MCGEE REFINING CORP. KERR MCGEE REFINING CORP. KERR MCGEE REFINING CORP. CORONADO PETROLEUM CORPORATION KERR MCGEE REFINING CORP. SUNOCO, INC (R&M) SUNOCO, INC (R&M) NATIONAL ENRGY GROUP INC SUNOCO, INC (R&M)

State Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Kansas Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma

Product Condensate Oil Oil Oil Oil Oil Oil Oil Condensate Oil Oil Oil Oil Condensate Condensate Condensate Condensate Oil Oil Oil Oil Condensate Condensate Condensate Condensate Condensate Oil Condensate Condensate Oil Condensate Condensate Oil Oil Condensate Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil Oil

Reason For Exclusion* 1,2,5 1,2,3,6 2,3,6 1,2,5 1,2,5 1,2,4 1,2,5 1,2,3 2,7 1,3 1,2 1,2 1 1,2,5 1,2,5 1,2,5 1,2,5 2,3,5 1,2 1,2 2 1,2 1,2,5 1,2 1,2 1,2 1,2 1,2 1,2 2 1,2 1,2 1 2 1,2 2 2 2 2,3 2,3 2 2,3 2,3 2 1,2,3 2 2 2 1 2 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

Sale Value 468.48 695.67 3,609.24 4.88 3.92 871.25 2.76 3,472.25 2,008.08 3,831.02 663.45 161.71 10,932.96 8.88 8.88 8.88 8.40 19.76 96.66 25.68 574.05 246.04 14.03 378.90 449.06 308.73 683.28 1,268.32 418.16 2,613.90 309.90 125.17 3,514.80 1,714.42 466.77 3,352.79 3,317.96 3,261.06 3,213.68 1,518.95 2,273.06 6,703.97 3,112.23 2,407.32 3,183.71 3,456.07 1,483.41 789.89 3,680.05 880.37

Sales Volume 0.16 18.08 103.75 0.16 0.16 36.50 0.12 152.04 90.47 178.89 31.25 7.62 516.76 0.42 0.42 0.42 0.40 0.96 4.70 1.26 28.18 12.09 0.69 18.66 22.12 15.21 33.68 62.57 20.64 129.05 15.30 6.18 173.55 84.66 23.05 165.57 163.85 161.04 158.70 75.01 112.25 331.06 153.69 118.88 157.22 170.67 73.26 39.01 181.75 43.48

Calculated Royalty Rate 0.1250 0.0625 0.1117 0.1250 0.1250 0.2000 0.1667 0.0152 0.1250 0.0625 0.1667 0.1667 0.1250 0.1667 0.1667 0.1667 0.1250 0.1544 0.1250 0.1667 0.1666 0.1667 0.2003 0.2000 0.2000 0.2000 0.1250 0.1250 0.1250 0.1250 0.2000 0.2000 0.2000 0.2000 0.1670 0.2000 0.2000 0.1250 0.1611 0.0625 0.1250 0.1069 0.0995 0.1250 0.0049 0.1250 0.1250 0.1250 0.2000 0.1250

14

Case 1:99-cv-00550-ECH

Document 257-3

Filed 11/17/2006

Page 15 of 18
Attachment 9 Royalty Value Less Allowances $ 47.02 $ 27.33 $ 14.30 $ 99.74 $ 36.16 $ 62.43 $ 11.74 $ 53.14 $ 315.41 $ 48.36 $ 25.28 $ 154.26 $ 1.82 $ 112.40 $ 25.46 $ 772.14 $ 25.04 $ 151.17 $ 11.67 $ 168.66 $ 6.69 $ 216.35 $ 10.12 $ 1,243.26 Calculated Unit Value $ 20.25 $ 20.25 $ 20.25 $ 20.25 $ 20.24 $ 20.24 $ 20.24 $ 20.24 $ 20.24 $ 20.23 $ 20.22 $ 20.22 $ 20.22 $ 20.22 $ 20.21 $ 20.20 $ 20.19 $ 20.18 $ 20.18 $ 20.15 $ 20.14 $ 20.14 $ 20.13 $ 20.12

July 1989 MMS 2014 Data

ID Lease Number Payor Id 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 0300646280 6020060570 0300616150 5180072400 0300646260 5180073260 0300608040 5180072630 6010425940 0300292480 0300292470 5180048490 5180093050 6010453060 6010003290 5180076800 0300384250 0300771410 5180052400 5100002140 0300590530 0300688350 029553862A 5110000190 13855 33796 13855 33796 13855 33796 13855 33010 44510 46459 72615 39832 36275 44730 11270 33796 27420 13855 72615 39831 27813 27813 39831 17555

Company Name DOMINION EXPLR & PROD. INC. FLINT HILLS RESOURCES DOMINION EXPLR & PROD. INC. FLINT HILLS RESOURCES DOMINION EXPLR & PROD. INC. FLINT HILLS RESOURCES DOMINION EXPLR & PROD. INC. KAISER-FRANCIS OIL COMPANY FREEPORT-MCMORAN, INC. HEC PETROLEUM INC. TXO C-O MARATHON OIL COMPANY ORYX ENERGY COMPANY J M PETROLEUM CORPORATION PHILLIPS PETROLEUM CO. BP AMERICA PRODUCTION COMPANY FLINT HILLS RESOURCES APACHE ENERGY RESOURCES CORP. DOMINION EXPLR & PROD. INC. TXO C-O MARATHON OIL COMPANY SUNOCO, INC (R&M) HARRELL PETROLEUM, INC HARRELL PETROLEUM, INC SUNOCO, INC (R&M) CONOCOPHILLIPS COMPANY

State Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma Oklahoma

Product Oil Oil Oil Condensate Oil Condensate Oil Condensate Oil Condensate Oil Condensate Condensate Oil Oil Oil Oil Oil Condensate Oil Condensate Condensate Oil Condensate

Reason For Exclusion* 1,2 1,2 1,2 1,2 1,2 1,2 1,2 1,2 1,3 1,2 1,2 1,2 2,5 1,2 1,2 1 1,2 1,2 1,2 2 1,2,3,5 1,3 2 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

Sale Value 376.20 218.66 114.39 498.66 289.30 312.17 93.93 265.69 7,570.12 386.88 202.24 925.60 9.10 899.20 203.68 3,860.71 200.32 1,209.35 70.01 1,349.27 (6,142.63) 7,926.92 80.93 9,946.04

Sales Volume 18.58 10.80 5.65 24.63 14.29 15.42 4.64 13.13 374.11 19.12 10.00 45.77 0.45 44.48 10.08 191.12 9.92 59.93 3.47 66.96 (305.04) 393.65 4.02 494.24

Calculated Royalty Rate 0.1250 0.1250 0.1250 0.2000 0.1250 0.2000 0.1250 0.2000 0.0417 0.1250 0.1250 0.1667 0.2000 0.1250 0.1250 0.2000 0.1250 0.1250 0.1667 0.1250 (0.0011) 0.0273 0.1250 0.1250

* Other exclusions may apply. Exclusion Codes Code 1 2 3 4 5 6 7 Description Not a major purchaser Appears to be a DOD Incorrect royalty rate Incorrect adjustment Small volume (less than 1 barrel per day) Sales value Other data anomaly

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Case 1:99-cv-00550-ECH

Document 257-3

Filed 11/17/2006

Page 16 of 18

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Case 1:99-cv-00550-ECH

Document 257-3

Filed 11/17/2006

Page 17 of 18

17

Case 1:99-cv-00550-ECH Document 257-3 Filed 11/17/2006 Revised Trial Exhibit E - Calculated Difference
MMS 2014 Data
A Tranche One Month B C Royalty Rate D Volume (Bbls) F Weighted Average Gravity H Highest posted or Offered Price I Reported Price Paid J Calculated Royalty Price K Calculated Royalty Due

Page 18 of 18
L M Calculated Difference L

Attachment 11
M

Tranche One Lease

Reported Royalty Paid

Calculated Calculated Difference and Difference and Interest2 Interest1 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 178,856 3,031 3 68 14,168 38,614 11,114 66,999 3,300 15 16 23,905 11,709 38,945 372 1 88 9 30,390 23,267 11,186 76 0 1 65,390 2,707 67 2,775 2,038 26 504 1,026 1,001 153 4,748 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 1,145,178 24,485 24 549 114,445 311,908 89,778 541,189 20,494 93 99 148,469 72,720 241,875 1,952 4 461 49 159,430 122,062 58,686 400 0 6 343,050 8,054 201 8,254 4,640 58 1,148 2,336 2,279 349 10,809

TOTAL 1 Jan-76 2 Jan-76 3 Jan-76 4 Jan-76 5 Jan-76 6 Jan-76 7 Jan-76 8 Jan-00 9 May-79 10 May-79 11 May-79 12 May-79 13 May-79 14 May-79 15 May-79 16 Jan-00 17 Nov-80 18 Nov-80 19 Nov-80 20 Nov-80 21 Nov-80 22 Nov-80 23 Nov-80 24 Nov-80 25 Nov-80 26 Nov-80 27 Nov-80 28 Nov-80 29 Nov-80 30 Jan-00 31 Feb-86 32 Feb-86 33 Feb-86 34 Feb-86 35 Feb-86 36 Feb-86 37 Feb-86 38 Jan-00 39 Jul-89 40 Jul-89 41 Jul-89 42 Jul-89 43 Jul-89 44 Jul-89 45 Jul-89 46 * Excludes
1,2

763,495 12.50% 16.67% 12.50% 16.67% 12.50% 12.50% 16.67% 0 12.50% 16.67% 12.50% 12.50% 16.67% 16.67% 12.50% 0 12.50% 16.67% 12.50% 16.67% 12.50% 12.50% 12.50% 16.67% 16.67% 16.67% 12.50% 12.50% 16.67% 0 12.50% 16.67% 12.50% 12.50% 16.67% 12.50% 16.67% 0 12.50% 16.67% 12.50% 12.50% 16.67% 12.50% 16.67% 160,738 120 3,030 10,434 37,916 347 8,181 139,506 90 2,067 22,908 11,640 5,254 346 88,379 149 21,142 126 4,990 1,233 11,753 4,761 3,245 3,323 12,038 5,499 177 79,699 112 13,987 18,600 14,322 3,196 35,459 175 5,601 18,360 13,395 1,198 38.8 38.8 35.1 38.7 38.7 41.1 44.0 38.8 38.8 35.1 38.7 38.7 41.1 44.0 38.8 38.8 38.8 38.8 38.8 35.1 38.7 38.7 38.7 38.7 38.7 41.1 44.0 38.8 38.8 35.1 40.0 38.5 41.1 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 13.46 13.46 13.40 13.46 13.46 13.50 13.50 19.31 19.31 19.25 19.32 19.31 19.35 19.35 36.00 36.00 36.00 36.00 36.00 35.94 36.00 36.00 36.00 36.00 36.00 36.04 36.04 20.61 20.61 20.17 20.77 20.48 23.75 20.12 20.12 20.11 20.12 20.12 20.12 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 13.31 13.31 13.22 5.33 5.33 13.50 5.37 19.12 18.31 19.19 19.32 7.03 6.02 25.80 36.04 52.83 35.86 35.96 35.86 35.88 15.43 6.84 15.43 35.86 36.00 48.00 36.00 20.71 20.70 18.63 20.74 20.54 24.69 19.66 19.25 19.40 19.68 19.68 19.36 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 13.46 13.46 13.40 13.46 13.46 13.50 13.50 19.31 19.31 19.25 19.32 19.31 19.35 25.80 36.04 52.83 36.00 36.00 36.00 35.94 36.00 36.00 36.00 36.00 36.00 48.00 36.04 20.71 20.70 20.17 20.77 20.54 24.69 20.12 20.12 20.11 20.12 20.12 20.12

$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

2,115,391 270,442 269 5,075 23,407 63,794 586 18,408 336,734 290 4,973 55,308 37,461 16,944 1,115 398,187 1,316 95,139 756 22,455 5,538 52,887 28,564 19,468 19,941 54,172 32,993 1,064 206,312 386 35,266 48,290 49,034 9,866 89,180 585 14,079 46,175 44,919 4,016

$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

1,937,211 267,418 266 5,007 9,269 25,262 586 7,317 333,444 275 4,957 55,308 13,630 5,271 1,115 398,187 1,316 94,769 755 22,368 5,529 22,668 5,427 8,344 19,865 54,172 32,993 1,062 206,312 386 32,565 48,223 49,034 9,866 87,159 560 13,579 45,158 43,926 3,865

$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $

178,179 3,025 3 68 14,138 38,532 11,091 66,857 3,290 15 16 23,831 11,672 38,824 370 1 87 9 30,219 23,136 11,124 76 0 1 65,023 2,701 67 2,768 2,021 25 500 1,017 992 152 4,707

North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Burbank Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit Osage Hominy Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit North Burbank Unit North Burbank Unit North Avant Unit Osage Hominy Unit Osage Hominy Unit East Hardy Unit East Hardy Unit

38.8 38.8 34.2 39.5 37.7 44.0

For description of the interest methodologies see Attachment 1.

18