| 389214 | Jun 21, 1991 | Jun 21, 1991 | Oryx Energy Company | Frio | Urban, Joe #1H16333080 | 10,600 |
| 389214Amendment | Jun 21, 1991 | Jun 21, 1991 | Oryx Energy Company | Frio | Hart, Elsie Ann, et Al #1H16333080 | 10,600 |
| 389092 | Jun 19, 1991 | Jun 19, 1991 | Oryx Energy Company | Zavala | Heitz, B. M. #3H50732419 | 10,000 |
| 388941 | Jun 13, 1991 | Jun 13, 1991 | Oryx Energy Company | Dimmit | Groves, S. B. Estate #2H12733025 | 10,100 |
| 388917 | Jun 12, 1991 | Jun 12, 1991 | Oryx Energy Company | Frio | Avant, J. R. -B- #4H16333077 | 10,600 |
| 388878 | Jun 10, 1991 | Jun 10, 1991 | Oryx Energy Company | Frio | Shelton, Howard #3H16330261 | 7,900 |
| 388792 | Jun 10, 1991 | Jun 10, 1991 | Oryx Energy Company | Goliad | Muecke, E. W. Unit #117532611 | 15,000 |
| 387843 | Jun 10, 1991 | Jun 10, 1991 | Oryx Energy Company | Winkler | Hill, M. J., -18- #2149505435 | 5,419 |
| 388753 | Jun 7, 1991 | Jun 7, 1991 | Oryx Energy Company | Zavala | Jones, E. B. -A- #2H50732418 | 13,500 |
| 388021 | Jun 7, 1991 | Jun 7, 1991 | Oryx Energy Company | Stephens | Carlisle, James #1542935294 | 3,500 |
| 388020 | Jun 7, 1991 | Jun 7, 1991 | Oryx Energy Company | Stephens | Carlisle, James #1442935295 | 3,500 |
| 388019 | Jun 7, 1991 | Jun 7, 1991 | Oryx Energy Company | Stephens | Carlisle, James #1642935414 | 3,500 |
| 388741 | Jun 6, 1991 | Jun 6, 1991 | Oryx Energy Company | La Salle | Mobil Fee #5H28331444 | 11,100 |
| 388667 | Jun 5, 1991 | Jun 5, 1991 | Oryx Energy Company | Dimmit | Needmore Ranch #1H12733024 | 10,500 |
| 388589 | Jun 3, 1991 | Jun 3, 1991 | Oryx Energy Company | La Salle | Klepec Bros. #1H28331441 | 11,150 |
| 388508 | May 31, 1991 | May 31, 1991 | Oryx Energy Company | Zavala | Lasater, M. L. Unit #1H50732417 | 10,650 |
| 388507 | May 31, 1991 | May 31, 1991 | Oryx Energy Company | Dimmit | Baty-Heitz Unit #1H12733023 | 10,500 |
| 388454 | May 30, 1991 | May 30, 1991 | Oryx Energy Company | Zavala | Lasater, M. L. #8H50732416 | 10,650 |
| 388397 | May 29, 1991 | May 29, 1991 | Oryx Energy Company | Frio | Shiner Ranch #3H16333071 | 12,100 |
| 387364 | May 24, 1991 | May 24, 1991 | Oryx Energy Company | Victoria | Bennett, W. H. #1746932575 | 7,670 |
| 388214 | May 22, 1991 | May 22, 1991 | Oryx Energy Company | Chambers | Oryx-Whitney Unit #107131961 | 9,200 |
| 388105 | May 22, 1991 | May 22, 1991 | Oryx Energy Company | Zavala | Jones, E.B. -C- #150730090 | 5,412 |
| 388139 | May 20, 1991 | May 20, 1991 | Oryx Energy Company | Dimmit | Robertson, K. E. et al Unit #1H12733011 | 9,450 |
| 388083 | May 17, 1991 | May 17, 1991 | Oryx Energy Company | Winkler | Hill, M. J. -23- #2749530266 | 5,450 |
| 388083Amendment | May 17, 1991 | May 17, 1991 | Oryx Energy Company | Winkler | Hill, M. J. -23- #2749530266 | 5,450 |
| 387975 | May 15, 1991 | May 15, 1991 | Oryx Energy Company | Coke | Mathers, C. E. #108101321 | 6,473 |
| 387974 | May 15, 1991 | May 15, 1991 | Oryx Energy Company | Dimmit | Price, Robert -A- #1H12733009 | 10,850 |
| 387973 | May 15, 1991 | May 15, 1991 | Oryx Energy Company | Frio | Panther Hollow #33H16333068 | 10,300 |
| 387973Amendment | May 15, 1991 | May 15, 1991 | Oryx Energy Company | Frio | Panther Hollow #33H16333068 | 6,385 |
| 387881 | May 13, 1991 | May 13, 1991 | Oryx Energy Company | Loving | Louise Wheat Unit #130130030 | 19,122 |
| 386943 | May 13, 1991 | May 13, 1991 | Oryx Energy Company | Starr | H. Acevado Gas Unit #142732321 | 8,150 |
| 387787 | May 10, 1991 | May 10, 1991 | Oryx Energy Company | Frio | Panther Hollow #32H16333064 | 10,950 |
| 387787Amendment | May 10, 1991 | May 10, 1991 | Oryx Energy Company | Frio | Panther Hollow #32H16333064 | 11,087 |
| 387725 | May 9, 1991 | May 9, 1991 | Oryx Energy Company | Zavala | Frost National Bank #4001H50732414 | 9,800 |
| 387617 | May 7, 1991 | May 7, 1991 | Oryx Energy Company | Zavala | Lasiter, Hubert -A- #1H50732413 | 9,800 |
| 387551 | May 6, 1991 | May 6, 1991 | Oryx Energy Company | Frio | Stacy, W. E. & Son #1H16332624 | 10,475 |
| 387477 | May 3, 1991 | May 3, 1991 | Oryx Energy Company | Zavala | Buchanan, John F. -A- #1H50732411 | 10,500 |
| 387333 | Apr 30, 1991 | Apr 30, 1991 | Oryx Energy Company | Coke | Walker, J.B. #608101454 | 6,600 |
| 387329 | Apr 30, 1991 | Apr 30, 1991 | Oryx Energy Company | Coke | Mathers, C. E. #308101325 | 6,396 |
| 386993 | Apr 19, 1991 | Apr 19, 1991 | Oryx Energy Company | Dimmit | Las Vegas Ranch #57H12732829 | 10,450 |
| 386992 | Apr 19, 1991 | Apr 19, 1991 | Oryx Energy Company | Zavala | Baggett, John B. -A- #4H50732410 | 10,630 |
| 386855 | Apr 16, 1991 | Apr 16, 1991 | Oryx Energy Company | Dimmit | Kinnard, Olga #1H12733002 | 10,450 |
| 386802 | Apr 15, 1991 | Apr 15, 1991 | Oryx Energy Company | Winkler | Hill, M.J. -23- A #3149531302 | 5,400 |
| 386801 | Apr 15, 1991 | Apr 15, 1991 | Oryx Energy Company | Winkler | Hill, M. J. #1349505428 | 9,913 |
| 386800 | Apr 15, 1991 | Apr 15, 1991 | Oryx Energy Company | Nolan | Lewis, J. #235331651 | 6,540 |
| 386799 | Apr 15, 1991 | Apr 15, 1991 | Oryx Energy Company | Dimmit | George, Burton O., Jr #2H12733001 | 10,468 |
| 386726 | Apr 12, 1991 | Apr 12, 1991 | Oryx Energy Company | Frio | Shiner Ranch #2H16333052 | 12,250 |
| 386625 | Apr 10, 1991 | Apr 10, 1991 | Oryx Energy Company | Zavala | Garner, J. N. #12H50732311 | 10,600 |
| 386583 | Apr 9, 1991 | Apr 9, 1991 | Oryx Energy Company | Frio | McKinley-Carter Unit #1H16333049 | 11,300 |
| 386539 | Apr 8, 1991 | Apr 8, 1991 | Oryx Energy Company | Martin | Burdine #131733865 | 11,500 |
| 386538 | Apr 8, 1991 | Apr 8, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #10913530374 | 9,050 |
| 386411 | Apr 4, 1991 | Apr 4, 1991 | Oryx Energy Company | Zavala | Baggett, John B. -A- #5H50732409 | 12,000 |
| 386170 | Mar 28, 1991 | Mar 28, 1991 | Oryx Energy Company | Zavala | Lasiter, Hubert #1H50732406 | 10,600 |
| 386159 | Mar 27, 1991 | Mar 27, 1991 | Oryx Energy Company | Coke | Mathers, C. E. #6108130990 | 6,500 |
| 385871 | Mar 18, 1991 | Mar 18, 1991 | Oryx Energy Company | Zavala | Garner, J. N. #13H50732405 | 10,600 |
| 385800 | Mar 18, 1991 | Mar 18, 1991 | Oryx Energy Company | Dimmit | W. F. Hayden et al Unit #1H12732992 | 9,900 |
| 385800Amendment | Mar 18, 1991 | Mar 18, 1991 | Oryx Energy Company | Dimmit | W. F. Hayden et al Unit #1H12732992 | 8,971 |
| 385765 | Mar 15, 1991 | Mar 15, 1991 | Oryx Energy Company | La Salle | Carroll, C. L. #1H28331428 | 11,800 |
| 385674 | Mar 13, 1991 | Mar 13, 1991 | Oryx Energy Company | Ector | Moss, Paul S.cowden(canyon 8790) #19913536434 | 9,200 |
| 385377 | Mar 7, 1991 | Mar 7, 1991 | Oryx Energy Company | Frio | Panther Hollow #40H16333021 | 11,200 |
| 381340 | Mar 7, 1991 | Mar 7, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #2H13509222 | 110 |
| 381332 | Mar 7, 1991 | Mar 7, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #1H13509219 | 1,175 |
| 381321 | Mar 7, 1991 | Mar 7, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #2713509220 | 130 |
| 385218 | Feb 28, 1991 | Feb 28, 1991 | Oryx Energy Company | Chambers | Pipkin, S. W. -A- #1407131912 | 10,000 |
| 385137 | Feb 26, 1991 | Feb 26, 1991 | Oryx Energy Company | Winkler | Hill, M. J. -23-A- #2249505436 | 5,375 |
| 385098 | Feb 25, 1991 | Feb 25, 1991 | Oryx Energy Company | Galveston | Zinn & Forman #1016700921 | 7,852 |
| 385098Amendment | Feb 25, 1991 | Feb 25, 1991 | Oryx Energy Company | Galveston | Zinn & Forman #1016700921 | 7,852 |
| 385098Amendment | Feb 25, 1991 | Feb 25, 1991 | Oryx Energy Company | Galveston | Zinn & Forman #1016700921 | 7,852 |
| 384959 | Feb 21, 1991 | Feb 21, 1991 | Oryx Energy Company | Coke | Walker, J. B. -A- #108101443 | 6,318 |
| 384872 | Feb 20, 1991 | Feb 20, 1991 | Oryx Energy Company | La Salle | Mobil Fee #1H28331420 | 10,300 |
| 384734 | Feb 19, 1991 | Feb 19, 1991 | Oryx Energy Company | Upton | Mobil Cook #346130206 | 10,565 |
| 384733 | Feb 19, 1991 | Feb 19, 1991 | Oryx Energy Company | Dimmit | Boyd, G. G. #36H12732985 | 10,800 |
| 384715 | Feb 15, 1991 | Feb 15, 1991 | Oryx Energy Company | Frio | Shiner Ranch #1H16333010 | 11,400 |
| 384712 | Feb 15, 1991 | Feb 15, 1991 | Oryx Energy Company | Nolan | Southwest Nena Lucia Unit #230835301296 | 7,125 |
| 383701 | Feb 15, 1991 | Feb 15, 1991 | Oryx Energy Company | Upton | McClure, W. W. a/C 1 #346103762 | 11,858 |
| 384528 | Feb 11, 1991 | Feb 11, 1991 | Oryx Energy Company | Starr | Olivares, A. #2242732467 | 10,400 |
| 384444 | Feb 8, 1991 | Feb 8, 1991 | Oryx Energy Company | Jim Wells | Seeligson Unit #011124902726 | 6,598 |
| 384390 | Feb 7, 1991 | Feb 7, 1991 | Oryx Energy Company | Jim Wells | Seeligson Unit #0149B24932154 | 8,000 |
| 384291 | Feb 5, 1991 | Feb 5, 1991 | Oryx Energy Company | Starr | Garcia L & L -C- #742732465 | 8,800 |
| 384155 | Feb 1, 1991 | Feb 1, 1991 | Oryx Energy Company | Martin | Mullins #131733840 | 11,600 |
| 384154 | Feb 1, 1991 | Feb 1, 1991 | Oryx Energy Company | Jim Wells | Canales, P. #12224903812 | 9,264 |
| 383939 | Jan 31, 1991 | Jan 31, 1991 | Oryx Energy Company | Howard | Hatch #122734623 | 10,600 |
| 383939Amendment | Jan 31, 1991 | Jan 31, 1991 | Oryx Energy Company | Howard | Hatch #122734623 | 10,600 |
| 383987 | Jan 29, 1991 | Jan 29, 1991 | Oryx Energy Company | Galveston | Zinn & Forman #316700914 | 7,850 |
| 383963 | Jan 29, 1991 | Jan 29, 1991 | Oryx Energy Company | Zavala | Lasater, M. L. #750732402 | 10,800 |
| 383818 | Jan 24, 1991 | Jan 24, 1991 | Oryx Energy Company | Zavala | Porter, Floyd R. #3H50732403 | 10,550 |
| 383761 | Jan 22, 1991 | Jan 22, 1991 | Oryx Energy Company | Coke | Frost #108131559 | 6,800 |
| 383761Amendment | Jan 22, 1991 | Jan 22, 1991 | Oryx Energy Company | Coke | Frost-Pullin Unit #1H08131559 | 8,700 |
| 383708 | Jan 21, 1991 | Jan 21, 1991 | Oryx Energy Company | Jim Wells | Seeligson Unit #0109BT24902889 | 6,160 |
| 381338 | Jan 21, 1991 | Jan 21, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #8WS13509227 | 104 |
| 381342 | Jan 17, 1991 | Jan 17, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #21WS13509226 | 130 |
| 381341 | Jan 17, 1991 | Jan 17, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #7WS13509214 | 119 |
| 381339 | Jan 17, 1991 | Jan 17, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #4WS13509216 | 119 |
| 381337 | Jan 17, 1991 | Jan 17, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #6WS13509221 | 116 |
| 381336 | Jan 17, 1991 | Jan 17, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #3WS13509224 | 1,350 |
| 381335 | Jan 17, 1991 | Jan 17, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #20WS13509210 | 122 |
| 381334 | Jan 17, 1991 | Jan 17, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #9WS13509217 | 114 |
| 381333 | Jan 17, 1991 | Jan 17, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #12WS13509209 | 1,225 |
| 381331 | Jan 17, 1991 | Jan 17, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #15WS13509218 | 1,250 |
| 381330 | Jan 17, 1991 | Jan 17, 1991 | Oryx Energy Company | Ector | Paul Moss Unit #17WS13509228 | 115 |