| 375378Amendment | Jul 11, 1990 | Jul 11, 1990 | Oryx Energy Company | Frio | Avant, J.R. -B- #1H16332776 | 11,100 |
| 375347 | Jul 10, 1990 | Jul 10, 1990 | Oryx Energy Company | Starr | Saenz, M. -State #2642731950 | 6,500 |
| 375340 | Jul 9, 1990 | Jul 9, 1990 | Oryx Energy Company | Andrews | Martin, Nellie C. #2000334319 | 7,450 |
| 375339 | Jul 9, 1990 | Jul 9, 1990 | Oryx Energy Company | Andrews | Martin, Nellie C. #1800334156 | 7,450 |
| 375338 | Jul 9, 1990 | Jul 9, 1990 | Oryx Energy Company | Andrews | Martin, Nellie C. #2200334684 | 7,450 |
| 375337 | Jul 9, 1990 | Jul 9, 1990 | Oryx Energy Company | Andrews | Martin, Nellie C. #1400333077 | 8,485 |
| 375336 | Jul 9, 1990 | Jul 9, 1990 | Oryx Energy Company | Andrews | Martin, Nellie C. #700332950 | 7,450 |
| 375268 | Jul 9, 1990 | Jul 9, 1990 | Oryx Energy Company | Frio | Shiner Ranch #101H16330503 | 8,000 |
| 375127 | Jul 2, 1990 | Jul 2, 1990 | Oryx Energy Company | Jim Wells | Seeligson Unit #164524902981 | 6,142 |
| 375057 | Jun 29, 1990 | Jun 29, 1990 | Oryx Energy Company | Starr | Hall, C. M. -A- #1042732318 | 8,999 |
| 374935 | Jun 27, 1990 | Jun 27, 1990 | Oryx Energy Company | Frio | Nicholson, J. H. #1H16332763 | 10,000 |
| 374935Amendment | Jun 27, 1990 | Jun 27, 1990 | Oryx Energy Company | Frio | Nicholson, J. H. #1H16332763 | 9,574 |
| 374934 | Jun 27, 1990 | Jun 27, 1990 | Oryx Energy Company | Jim Wells | Canales, P. #11624903671 | 6,852 |
| 374925 | Jun 26, 1990 | Jun 26, 1990 | Oryx Energy Company | Starr | Hall, C. M. -A- #942732246 | 8,800 |
| 374883 | Jun 25, 1990 | Jun 25, 1990 | Oryx Energy Company | Starr | Hall, J. F. -State #2342732258 | 7,495 |
| 374824 | Jun 22, 1990 | Jun 22, 1990 | Oryx Energy Company | Starr | Montalvo, I.V. -C- #2642700594 | 5,666 |
| 374823 | Jun 22, 1990 | Jun 22, 1990 | Oryx Energy Company | Zavala | Frost National Bank #4002H50732343 | 10,400 |
| 374705 | Jun 19, 1990 | Jun 19, 1990 | Oryx Energy Company | Howard | Guitar #122734570 | 10,500 |
| 374642 | Jun 18, 1990 | Jun 18, 1990 | Oryx Energy Company | Coke | Tubb, W. I. #308101430 | 6,509 |
| 374516 | Jun 14, 1990 | Jun 14, 1990 | Oryx Energy Company | Coke | Jameson, Fred #208101210 | 6,419 |
| 374515 | Jun 14, 1990 | Jun 14, 1990 | Oryx Energy Company | Coke | Jameson, Fred #508101270 | 6,418 |
| 374514 | Jun 14, 1990 | Jun 14, 1990 | Oryx Energy Company | Coke | Jameson, Fred #1208101281 | 6,468 |
| 374513 | Jun 14, 1990 | Jun 14, 1990 | Oryx Energy Company | Zavala | Booth, Lloyd W. #2H50732341 | 10,000 |
| 374464 | Jun 13, 1990 | Jun 13, 1990 | Oryx Energy Company | Victoria | McFaddin #16646932248 | 5,860 |
| 374463 | Jun 13, 1990 | Jun 13, 1990 | Oryx Energy Company | Dimmit | Big Wells (San Miguel) Unit #202212732187 | 5,575 |
| 374397 | Jun 11, 1990 | Jun 11, 1990 | Oryx Energy Company | Coke | Mathers, C. E. #5208130280 | 6,510 |
| 374395 | Jun 11, 1990 | Jun 11, 1990 | Oryx Energy Company | Dimmit | Standifer-Stone #2H12732896 | 10,800 |
| 374282 | Jun 8, 1990 | Jun 8, 1990 | Oryx Energy Company | Stephens | Curry Unit #131742935208 | 3,500 |
| 374281 | Jun 8, 1990 | Jun 8, 1990 | Oryx Energy Company | Stephens | Curry Unit #50642935212 | 3,500 |
| 374280 | Jun 8, 1990 | Jun 8, 1990 | Oryx Energy Company | Stephens | Curry Unit #60242935211 | 3,500 |
| 374279 | Jun 8, 1990 | Jun 8, 1990 | Oryx Energy Company | Stephens | Curry Unit #223942935210 | 3,500 |
| 374278 | Jun 8, 1990 | Jun 8, 1990 | Oryx Energy Company | Stephens | Curry Unit #161542935209 | 3,500 |
| 374226 | Jun 8, 1990 | Jun 8, 1990 | Oryx Energy Company | Chambers | Jackson, Felix et Al #5907130511 | 8,408 |
| 374223 | Jun 8, 1990 | Jun 8, 1990 | Oryx Energy Company | Jim Wells | Canales, P. #13824931776 | 7,859 |
| 374223Amendment | Jun 8, 1990 | Jun 8, 1990 | Oryx Energy Company | Jim Wells | Canales, P. #13824931776 | 7,859 |
| 374219 | Jun 7, 1990 | Jun 7, 1990 | Oryx Energy Company | Frio | McKinley, Lela #2H16330425 | 7,600 |
| 374190 | Jun 7, 1990 | Jun 7, 1990 | Oryx Energy Company | Frio | Nicholson, J. H. #2H16332745 | 10,000 |
| 374184 | Jun 6, 1990 | Jun 6, 1990 | Oryx Energy Company | Frio | Avant, J.R. -B- #3H16332744 | 12,300 |
| 374184Amendment | Jun 6, 1990 | Jun 6, 1990 | Oryx Energy Company | Frio | Avant, J.R. -B- #3H16332744 | 11,646 |
| 374048 | Jun 4, 1990 | Jun 4, 1990 | Oryx Energy Company | Zavala | Heitz, B. M. #2H50732332 | 10,100 |
| 372882 | Jun 4, 1990 | Jun 4, 1990 | Oryx Energy Company | Panola | Sallie J. Neal -a- Gas Unit #736532336 | 10,000 |
| 373861 | May 25, 1990 | May 25, 1990 | Oryx Energy Company | Jim Wells | Seeligson Unit #1633A24930402 | 6,800 |
| 372849 | May 25, 1990 | May 25, 1990 | Oryx Energy Company | Jim Wells | Canales, A. T. #6324931905 | 8,500 |
| 373743 | May 23, 1990 | May 23, 1990 | Oryx Energy Company | Jim Wells | Seeligson Unit #0131BT24903808 | 5,420 |
| 372735 | May 23, 1990 | May 23, 1990 | Oryx Energy Company | Andrews | Martin, Nellie C. #2600336733 | 7,000 |
| 373706 | May 22, 1990 | May 22, 1990 | Oryx Energy Company | Starr | Frost Natl. Bank Ind. Ex. -B- #3442731319 | 4,400 |
| 372677 | May 22, 1990 | May 22, 1990 | Oryx Energy Company | Andrews | Martin, Nellie C. #2500336730 | 7,000 |
| 373523 | May 18, 1990 | May 18, 1990 | Oryx Energy Company | Frio | Kiefer-Urban Unit #1H16332735 | 11,000 |
| 373427 | May 16, 1990 | May 16, 1990 | Oryx Energy Company | Zavala | Baggett, John B. -B- #1H50732325 | 10,500 |
| 373343 | May 14, 1990 | May 14, 1990 | Oryx Energy Company | Nolan | Pierce #1H35332139 | 7,000 |
| 373203 | May 11, 1990 | May 11, 1990 | Oryx Energy Company | Zavala | Booth, Lloyd W. #1H50732324 | 14,000 |
| 373203Amendment | May 11, 1990 | May 11, 1990 | Oryx Energy Company | Zavala | Booth, Lloyd W. #1H50732324 | 10,126 |
| 373124 | May 9, 1990 | May 9, 1990 | Oryx Energy Company | Nolan | Jordan Ranch #335332138 | 7,000 |
| 372991 | May 4, 1990 | May 4, 1990 | Oryx Energy Company | Howard | Walters, Mittie #422734548 | 10,600 |
| 372877 | May 2, 1990 | May 2, 1990 | Oryx Energy Company | Frio | Henderson, W. L. #1H16330914 | 9,575 |
| 372876 | May 2, 1990 | May 2, 1990 | Oryx Energy Company | Zavala | R. M. Gregg Unit #1H50732318 | 9,400 |
| 372875 | May 2, 1990 | May 2, 1990 | Oryx Energy Company | Eastland | Robertson CSL #1213334789 | 3,700 |
| 372809 | Apr 30, 1990 | Apr 30, 1990 | Oryx Energy Company | Frio | Avant, J. R. -B- #2H16332711 | 7,500 |
| 372809Amendment | Apr 30, 1990 | Apr 30, 1990 | Oryx Energy Company | Frio | Avant, J. R. -B- #2H16332711 | 11,852 |
| 372676 | Apr 26, 1990 | Apr 26, 1990 | Oryx Energy Company | Zavala | Day, R. B. #1H50732314 | 9,600 |
| 372623 | Apr 25, 1990 | Apr 25, 1990 | Oryx Energy Company | Galveston | Zinn & Forman #2116730913 | 7,720 |
| 372589 | Apr 25, 1990 | Apr 25, 1990 | Oryx Energy Company | Upton | McClure, W. W. a/C 1 #1046132382 | 10,150 |
| 372563 | Apr 24, 1990 | Apr 24, 1990 | Oryx Energy Company | Stephens | SE Breckenridge Unit #50142935201 | 3,500 |
| 372563Amendment | Apr 24, 1990 | Apr 24, 1990 | Oryx Energy Company | Stephens | SE Breckenridge Unit #50142935201 | 3,500 |
| 372562 | Apr 24, 1990 | Apr 24, 1990 | Oryx Energy Company | Stephens | SE Breckenridge #91142935203 | 3,500 |
| 372561 | Apr 24, 1990 | Apr 24, 1990 | Oryx Energy Company | Stephens | SE Breckenridge Unit #12242935200 | 3,500 |
| 372560 | Apr 24, 1990 | Apr 24, 1990 | Oryx Energy Company | Stephens | SE Breckenridge Unit #609H42935204 | 3,500 |
| 372560Amendment | Apr 24, 1990 | Apr 24, 1990 | Oryx Energy Company | Stephens | Southeast Breckenridge Unit #60942935204 | 3,500 |
| 372559 | Apr 24, 1990 | Apr 24, 1990 | Oryx Energy Company | Stephens | SE Breckenridge Unit #12342935202 | 3,500 |
| 372558 | Apr 24, 1990 | Apr 24, 1990 | Oryx Energy Company | Kleberg | Canales, A. T. #5327331211 | 11,750 |
| 372557 | Apr 24, 1990 | Apr 24, 1990 | Oryx Energy Company | Chambers | Jackson, Felix et Al #1607102323 | 8,379 |
| 372527 | Apr 23, 1990 | Apr 23, 1990 | Oryx Energy Company | Coke | Jameson, H. H. #108101260 | 6,462 |
| 372437 | Apr 20, 1990 | Apr 20, 1990 | Oryx Energy Company | Galveston | Cade-Zinn & Forman Unit #116730975 | 7,720 |
| 372322 | Apr 18, 1990 | Apr 18, 1990 | Oryx Energy Company | Winkler | Brown-Altman a/C 2 #849505618 | 11,435 |
| 372321 | Apr 18, 1990 | Apr 18, 1990 | Oryx Energy Company | Jim Wells | Canales, P. #13924931820 | 7,717 |
| 372167 | Apr 13, 1990 | Apr 13, 1990 | Oryx Energy Company | Dimmit | Big Wells Lo. San Miguel Unit #1412730279 | 5,830 |
| 372086 | Apr 11, 1990 | Apr 11, 1990 | Oryx Energy Company | Jim Wells | Canales, P. #11124903111 | 6,802 |
| 372085 | Apr 11, 1990 | Apr 11, 1990 | Oryx Energy Company | La Salle | Cross, D. #1H28331312 | 11,000 |
| 372085Amendment | Apr 11, 1990 | Apr 11, 1990 | Oryx Energy Company | La Salle | Cross, D. #1H28331312 | 9,463 |
| 372084 | Apr 11, 1990 | Apr 11, 1990 | Oryx Energy Company | Andrews | University -F- #400307314 | 9,654 |
| 371933 | Apr 6, 1990 | Apr 6, 1990 | Oryx Energy Company | Galveston | Hudnall, Zinn & Forman #216700928 | 7,713 |
| 371877 | Apr 5, 1990 | Apr 5, 1990 | Oryx Energy Company | Starr | Chapotal Land Co. B #2142731631 | 9,861 |
| 370719 | Apr 4, 1990 | Apr 4, 1990 | Oryx Energy Company | Howard | Warder #3522730755 | 3,180 |
| 371729 | Apr 2, 1990 | Apr 2, 1990 | Oryx Energy Company | Zavala | Garner, J. N. #12H50732311 | 9,700 |
| 371728 | Apr 2, 1990 | Apr 2, 1990 | Oryx Energy Company | Galveston | Zinn & Foreman #1816730315 | 7,716 |
| 371608 | Mar 29, 1990 | Mar 29, 1990 | Oryx Energy Company | Chambers | Jackson, Felix et Al #4807102356 | 8,400 |
| 371608Amendment | Mar 29, 1990 | Mar 29, 1990 | Oryx Energy Company | Chambers | Jackson, Felix et Al #4807102356 | 8,400 |
| 370615 | Mar 29, 1990 | Mar 29, 1990 | Oryx Energy Company | Andrews | Martin, Nellie C. #2300335529 | 8,869 |
| 371569 | Mar 28, 1990 | Mar 28, 1990 | Oryx Energy Company | Coke | Walker, J. B. #108101196 | 6,481 |
| 371568 | Mar 28, 1990 | Mar 28, 1990 | Oryx Energy Company | Coke | Walker, J. B. #508101452 | 6,272 |
| 371567 | Mar 28, 1990 | Mar 28, 1990 | Oryx Energy Company | Jim Wells | Seeligson Unit #0104B24902887 | 5,720 |
| 371566 | Mar 28, 1990 | Mar 28, 1990 | Oryx Energy Company | Starr | De Garza, C. L. #2142700549 | 6,702 |
| 371505 | Mar 27, 1990 | Mar 27, 1990 | Oryx Energy Company | Starr | Hall, J. F. State -A- #842731834 | 9,810 |
| 371476 | Mar 26, 1990 | Mar 26, 1990 | Oryx Energy Company | Frio | Henderson, W. L. #2H16330915 | 9,000 |
| 371362 | Mar 23, 1990 | Mar 23, 1990 | Oryx Energy Company | Dimmit | Jasik, C. #1H12732866 | 10,200 |
| 371266 | Mar 22, 1990 | Mar 22, 1990 | Oryx Energy Company | Frio | McKinley, W. W. -C- #2H16332679 | 10,500 |
| 371024 | Mar 15, 1990 | Mar 15, 1990 | Oryx Energy Company | Dimmit | Groves, S. B. Estate #1H12732864 | 10,800 |
| 371024Amendment | Mar 15, 1990 | Mar 15, 1990 | Oryx Energy Company | Dimmit | Groves, S. B. Estate #1H12732864 | 10,454 |
| 370956 | Mar 14, 1990 | Mar 14, 1990 | Oryx Energy Company | Starr | Yturria L & L Co. B #542732350 | 5,078 |
| 370766 | Mar 9, 1990 | Mar 9, 1990 | Oryx Energy Company | Fisher | Tucker, S. P. #1215131710 | 5,941 |