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| WALKER COUNTY (click on column title to change the listing order) | | Purchaser 2005 | Rank - 2005 | Rank - 2004 | Rank - 2003 | Rank - 2002 | Rank - 2001 | Rank - 2000 | Rank - 1999 | Rank - 1998 | C % 05 | C % 04 | C % 03 | C % 02 | C % 01 | C % 00 | C % 99 | C % 98 | Bbl 04 | Bbl 02 | Bbl 01 | Bbl - 00 | Bbl - 99 | Bbl - 98 | $/Bbl - 05 | $/Bbl - 04 | $/Bbl - 03 | $/Bbl - 02 | $/Bbl - 01 | $/Bbl - 00 | $/Bbl - 99 | $/Bbl - 98 | Gr Val 05 | Gr Val 04 | Gr Val 03 | Gr Val 02 | Gr Val 01 | Gr Val 00 |
| PLAINS MARKETING LP | 1 | 1 | 2 | 20 | 1 | 2 | | | 46.435% | 0.221% | 7.999% | 37.511% | 43.763% | 23.856% | 0.000% | 0.000% | 2,406 | 6,055 | 5,810 | 2,419 | | | $51.04 | $37.08 | $27.29 | $22.85 | $24.30 | $28.68 | | | $140,926 | $89,219 | $82,981 | $138,374 | $141,177 | $69,193 |
| GULFMARK ENERGY INC | 2 | 4 | 5 | 25 | 5 | 4 | 8 | 8 | 25.664% | 0.000% | 1.686% | 1.976% | 1.024% | 5.562% | 1.033% | 1.260% | 1,124 | 319 | 136 | 564 | 323 | 505 | $51.12 | $39.15 | $28.58 | $30.06 | $25.34 | $25.94 | $22.45 | $11.87 | $78,014 | $44,000 | $18,319 | $9,590 | $3,446 | $14,638 |
| TEPPCO CRUDE OIL L P | 3 | 3 | 1 | 22 | 3 | 5 | 5 | | 18.399% | 0.111% | 82.077% | 14.750% | 17.972% | 5.542% | 2.904% | 0.000% | 1,207 | 2,381 | 2,386 | 562 | 908 | | $52.79 | $36.51 | $28.34 | $24.11 | $25.04 | $27.76 | $18.66 | | $57,753 | $44,062 | $884,264 | $57,409 | $59,748 | $15,606 |
| BP AMERICA PRODUCTION COMPANY | 4 | 2 | 3 | 23 | | | | | 9.502% | 0.179% | 5.032% | 14.329% | 0.000% | 0.000% | 0.000% | 0.000% | 1,944 | 2,313 | | | | | $48.69 | $39.31 | $29.82 | $24.50 | | | | | $27,511 | $76,428 | $57,051 | $56,678 | | |
| AMOCO PRODUCTION COMPANY | | | 4 | 21 | 2 | | | | 0.000% | 0.000% | 2.386% | 28.330% | 33.075% | 0.000% | 0.000% | 0.000% | | 4,573 | 4,391 | | | | | | $31.44 | $24.73 | $24.43 | | | | | | $28,518 | $113,081 | $107,264 | |
| BML INC | | 5 | | | | | | | 0.000% | 0.016% | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 170 | | | | | | | $36.67 | | | | | | | | $6,234 | | | | |
| CROSSTEX ENERGY SERVICES LTD | | | | | | | 7 | | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 1.142% | 0.000% | | | | | 357 | | | | | | | | $11.03 | | | | | | | |
| DUKE ENERGY TRANSPORT AND TRADING COMPANY | | | | | | | | 6 | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 1.447% | | | | | | 580 | | | | | | | | $11.99 | | | | | | |
| EQUIVA TRADING COMPANY | | | | | | | 4 | 5 | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 12.919% | 2.125% | | | | | 4,039 | 852 | | | | | | | $14.29 | $8.80 | | | | | | |
| GENESIS CRUDE OIL LP | | | 6 | 24 | 4 | 6 | 6 | 4 | 0.000% | 0.000% | 0.821% | 3.104% | 4.165% | 3.560% | 2.348% | 4.372% | | 501 | 553 | 361 | 734 | 1,753 | | | $30.44 | $25.25 | $23.87 | $29.13 | $16.94 | $12.32 | | | $9,496 | $12,651 | $13,198 | $10,517 |
| HYDROCARBON PROCESSING PARTNERS LTD | | | | | | | | 7 | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 1.334% | | | | | | 535 | | | | | | | | $12.01 | | | | | | |
| MESA PIPE LINE COMPANY | | | | | | | | 9 | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 0.471% | | | | | | 189 | | | | | | | | $16.32 | | | | | | |
| PLAINS MARKETING & TRANSPORTATION INC | | | | | | 3 | 2 | 2 | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 13.787% | 31.764% | 28.214% | | | | 1,398 | 9,931 | 11,312 | | | | | | $27.55 | $15.69 | $13.04 | | | | | | $38,911 |
| SCURLOCK PERMIAN CORPORATION | | | | | | | 3 | 1 | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 15.234% | 40.119% | | | | | 4,763 | 16,085 | | | | | | | $10.20 | $12.37 | | | | | | |
| SCURLOCK PERMIAN LLC | | | | | | 1 | 1 | 3 | 0.000% | 0.000% | 0.000% | 0.000% | 0.000% | 47.692% | 32.656% | 20.657% | | | | 4,836 | 10,210 | 8,282 | | | | | | $25.02 | $16.02 | $11.57 | | | | | | $130,785 |
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