| 379330 | Oct 11, 1990 | Oct 11, 1990 | North Central Oil Corp. | Nitsch-Williams #1 | 8,300 | 48133443 |
| 378933 | Oct 4, 1990 | Oct 4, 1990 | Greenhill Petroleum Corporation | Sorrel, Marcial III #1 | 12,500 | 48133442 |
| 378728 | Oct 3, 1990 | Oct 3, 1990 | Cox & Perkins Exploration, Inc. | Gold-Zapp #2 | 11,300 | 48133180 |
| 377411 | Oct 2, 1990 | Oct 2, 1990 | Harrison, Sam G. Oil Inc. | Mauritz, T. N. et Al #4 | 5,800 | 48133435 |
| 378549 | Sep 28, 1990 | Sep 28, 1990 | Cico Oil & Gas Co. | Gavranovic #1 | 5,350 | 48132689 |
| 378415 | Sep 27, 1990 | Sep 27, 1990 | Cox & Perkins Exploration, Inc. | Gold-Zapp #1 | 11,288 | 48133050 |
| 378109 | Sep 25, 1990 | Sep 25, 1990 | North Central Oil Corp. | Thiltgen, Louise E. et Al #1 | 8,400 | 48133439 |
| 378184 | Sep 20, 1990 | Sep 20, 1990 | North Central Oil Corp. | Wittig, Ronnie D. #1 | 5,400 | 48133440 |
| 377904 | Sep 19, 1990 | Sep 19, 1990 | Ladd Petroleum Corp. | Kainer, et Al #2 | 10,545 | 48132864 |
| 377730 | Sep 12, 1990 | Sep 12, 1990 | North Central Oil Corp. | Henderson, J. P. et Al #1 | 8,400 | 48133438 |
| 377672 | Sep 11, 1990 | Sep 11, 1990 | North Central Oil Corp. | Naiser, William J. et UX #1 | 3,200 | 48133437 |
| 377589 | Sep 11, 1990 | Sep 11, 1990 | Tuskar (Texas), Inc. | Arco Fee #11 | 600 | 48133436 |
| 377311 | Sep 4, 1990 | Sep 4, 1990 | Griffin, Clarence F. | Anderson, Lucrese #2 | 650 | 48133434 |
| 377363 | Aug 30, 1990 | Aug 30, 1990 | Cox & Perkins Exploration, Inc. | Donaldson #1 | 13,500 | 48133433 |
| 377363Amendment | Aug 30, 1990 | Aug 30, 1990 | Cox & Perkins Exploration, Inc. | Donaldson #1 | 14,200 | 48133433 |
| 377164 | Aug 30, 1990 | Aug 30, 1990 | North Central Oil Corp. | Carriere-Nitsch #1 | 8,400 | 48133432 |
| 376378 | Aug 30, 1990 | Aug 30, 1990 | Apache Corporation | Norris, John #1 | 5,567 | 48102609 |
| 376462 | Aug 23, 1990 | Aug 23, 1990 | Houston Expl. & Prod. Co., Inc. | Means, M. B. et Al #1A | 7,914 | 48103673 |
| 376423 | Aug 23, 1990 | Aug 23, 1990 | Twenty Oaks of Texas, Inc. | Shult #1 | 6,640 | 48133237 |
| 376821 | Aug 22, 1990 | Aug 22, 1990 | Greenhill Petroleum Corporation | Meriwether, Ednamaye et Al #2 | 14,500 | 48133431 |
| 376745 | Aug 22, 1990 | Aug 22, 1990 | Scoggins Oil & Gas Co. | Forgason, Lancer et Al #1 | 4,000 | 48132352 |
| 376430 | Aug 15, 1990 | Aug 15, 1990 | North Central Oil Corp. | Meek, Robert E. #1 | 8,400 | 48133430 |
| 376456 | Aug 14, 1990 | Aug 14, 1990 | Armour Resource Holdings, Ltd. | Pierce Estate "S" #1 | 5,012 | 48133262 |
| 376456Amendment | Aug 14, 1990 | Aug 14, 1990 | Armour Resource Holdings, Ltd. | Pierce Estate "S" #1 | 5,012 | 48133262 |
| 376272 | Aug 10, 1990 | Aug 10, 1990 | Atapco | Mahalitc #2 | 5,000 | 48133427 |
| 374933 | Aug 10, 1990 | Aug 10, 1990 | Finch, B. L. Production Co. | Floyd, Belle M. -F #3F | 740 | 48134858 |
| 376369 | Aug 8, 1990 | Aug 8, 1990 | Atapco | Reynolds #1 | 3,000 | 48133429 |
| 376229 | Aug 6, 1990 | Aug 6, 1990 | Westhall Associates, Inc. | Rust "A" #1 | 6,000 | 48133426 |
| 376056 | Aug 2, 1990 | Aug 2, 1990 | Keck, W. M. II | Allen, Charles H. Jr. #1 | 14,000 | 48133424 |
| 375006 | Aug 2, 1990 | Aug 2, 1990 | Westhall Associates, Inc. | Sorrel #2 | 4,600 | 48133407 |
| 376038 | Jul 31, 1990 | Jul 31, 1990 | Bettis, Boyle & Stovall | Herrmann #2 | 3,100 | 48133425 |
| 375955 | Jul 30, 1990 | Jul 30, 1990 | CPX Petroleum, Inc. | Barta #1 | 4,000 | 48133421 |
| 375852 | Jul 30, 1990 | Jul 30, 1990 | Greenhill Petroleum Corporation | Wendel, I. C. #1 | 8,500 | 48133419 |
| 375852Amendment | Jul 30, 1990 | Jul 30, 1990 | Greenhill Petroleum Corporation | Wendel, I. C. #1 | 8,600 | 48133419 |
| 376019 | Jul 27, 1990 | Jul 27, 1990 | Apache Corporation | Hennessy-Deacon #2 | 6,000 | 48133420 |
| 376019Amendment | Jul 27, 1990 | Jul 27, 1990 | Apache Corporation | Hennessy-Deacon #2 | 6,000 | 48133420 |
| 375980 | Jul 27, 1990 | Jul 27, 1990 | North Central Oil Corp. | Holt, James I. et UX #1 | 8,400 | 48133422 |
| 375818 | Jul 25, 1990 | Jul 25, 1990 | Cox & Perkins Exploration, Inc. | Pierce Estate #D 12 | 10,900 | 48133417 |
| 375794 | Jul 25, 1990 | Jul 25, 1990 | Boling Production Co., Inc. | Taylor, S. T. #4 | 1,600 | 48133418 |
| 375821 | Jul 24, 1990 | Jul 24, 1990 | Westhall Associates, Inc. | Krenek #2 | 5,500 | 48133416 |
| 375658 | Jul 20, 1990 | Jul 20, 1990 | Geodominion Petroleum | Hawes #1 | 5,500 | 48133415 |
| 375658Amendment | Jul 20, 1990 | Jul 20, 1990 | Geodominion Petroleum | Hawes #1 | 5,500 | 48133415 |
| 375501 | Jul 18, 1990 | Jul 18, 1990 | Hollimon Oil Corporation | Brothers Cattle Co., Inc. #1 | 5,300 | 48133414 |
| 375354 | Jul 13, 1990 | Jul 13, 1990 | Davis, A. L. Production Company | Thomas, E. W. #3D | 700 | 48133412 |
| 375350 | Jul 12, 1990 | Jul 12, 1990 | North Central Oil Corp. | Carriere, Evelyn C. et Al #1 | 8,300 | 48133413 |
| 375250 | Jul 11, 1990 | Jul 11, 1990 | Hughes, Dan A. Company | Dippel, O. H. #1 | 11,000 | 48133411 |
| 375250Amendment | Jul 11, 1990 | Jul 11, 1990 | Hughes, Dan A. Company | Dippel, O. H. #1 | 11,000 | 48133411 |
| 375196 | Jul 6, 1990 | Jul 6, 1990 | Westhall Associates, Inc. | Rust #1 | 6,000 | 48133410 |
| 375091 | Jul 5, 1990 | Jul 5, 1990 | Delray Oil, Inc. | Thomas Farms, Inc. #1 | 7,500 | 48133408 |
| 374299 | Jul 3, 1990 | Jul 3, 1990 | Apache Corporation | Debruhl, H. E. #2 | 5,800 | 48102635 |
| 375131 | Jul 2, 1990 | Jul 2, 1990 | Cox & Perkins Exploration, Inc. | Louie #1 | 12,000 | 48133409 |
| 375131Amendment | Jul 2, 1990 | Jul 2, 1990 | Tomlinson, Thomas K. Inc. | Louie #1 | 6,253 | 48133409 |
| 373695 | Jul 2, 1990 | Jul 2, 1990 | Mustang Exploration Co., Inc. | Engbrock, Glen #2 #2 | 3,042 | 48130339 |
| 374910 | Jun 29, 1990 | Jun 29, 1990 | Westhall Associates, Inc. | Chumchal #1 | 5,800 | 48133396 |
| 374873 | Jun 29, 1990 | Jun 29, 1990 | Coleville Petroleum Company | Tyler, J. D. et Al #1A | 3,000 | 48133395 |
| 374999 | Jun 28, 1990 | Jun 28, 1990 | Texas Meridian Operating Co.,inc | Wilbeck et al Unit #2 | 6,500 | 48133406 |
| 374893 | Jun 28, 1990 | Jun 28, 1990 | Davis, A. L. Production Company | Harrison #9D | 352 | 48133405 |
| 374892 | Jun 28, 1990 | Jun 28, 1990 | Davis, A. L. Production Company | Harrison #2D | 420 | 48133397 |
| 374891 | Jun 28, 1990 | Jun 28, 1990 | Davis, A. L. Production Company | Harrison #1D | 373 | 48133404 |
| 374890 | Jun 28, 1990 | Jun 28, 1990 | Davis, A. L. Production Company | Harrison #8D | 324 | 48133403 |
| 374889 | Jun 28, 1990 | Jun 28, 1990 | Davis, A. L. Production Company | Harrison #6D | 316 | 48133400 |
| 374888 | Jun 28, 1990 | Jun 28, 1990 | Davis, A. L. Production Company | Harrison #7D | 339 | 48133402 |
| 374887 | Jun 28, 1990 | Jun 28, 1990 | Davis, A. L. Production Company | Harrison #5D | 324 | 48133399 |
| 374886 | Jun 28, 1990 | Jun 28, 1990 | Davis, A. L. Production Company | Harrison #4D | 342 | 48133401 |
| 374885 | Jun 28, 1990 | Jun 28, 1990 | Davis, A. L. Production Company | Harrison #3D | 411 | 48133398 |
| 374820 | Jun 25, 1990 | Jun 25, 1990 | Westhall Associates, Inc. | Goff #1 | 5,500 | 48133394 |
| 374739 | Jun 22, 1990 | Jun 22, 1990 | Billfisch Exploration Co., Inc. | Lehrer B #6 | 4,650 | 48133393 |
| 374619 | Jun 21, 1990 | Jun 21, 1990 | Geodominion Petroleum | Smidt #1 | 5,000 | 48133391 |
| 374619Amendment | Jun 21, 1990 | Jun 21, 1990 | Geodominion Petroleum | Smidt #1 | 5,012 | 48133391 |
| 374706 | Jun 19, 1990 | Jun 19, 1990 | Apache Corporation | Franz, J. H. #4 | 5,800 | 48133392 |
| 374706Amendment | Jun 19, 1990 | Jun 19, 1990 | Apache Corporation | Franz, J. H. #4 | 5,812 | 48133392 |
| 374473 | Jun 19, 1990 | Jun 19, 1990 | Pacific Enterprises Oil Co.(usa) | Lehman #2 | 6,208 | 48132578 |
| 374481 | Jun 15, 1990 | Jun 15, 1990 | Westhall Associates, Inc. | Muegge #1 | 4,850 | 48133390 |
| 374481Amendment | Jun 15, 1990 | Jun 15, 1990 | Westhall Associates, Inc. | Muegge #1 | 5,000 | 48133390 |
| 374214 | Jun 11, 1990 | Jun 11, 1990 | Arco Oil & Gas Co. | Stovall, Edith #1 | 10,600 | 48133388 |
| 374214Amendment | Jun 11, 1990 | Jun 11, 1990 | Arco Oil & Gas Co. | Stovall, Edith #1 | 10,600 | 48133388 |
| 374301 | Jun 8, 1990 | Jun 8, 1990 | Tuskar (Texas), Inc. | Arco Fee #10 | 800 | 48133389 |
| 374152 | Jun 8, 1990 | Jun 8, 1990 | TXO Production Corp. | Wintermann "B" #1 | 7,750 | 48132729 |
| 374029 | Jun 6, 1990 | Jun 6, 1990 | Greenhill Petroleum Corporation | Wendel, Anna Jane #1 | 8,500 | 48133387 |
| 374028 | Jun 6, 1990 | Jun 6, 1990 | Greenhill Petroleum Corporation | Corbett Brothers #1 | 9,000 | 48133386 |
| 374025 | Jun 6, 1990 | Jun 6, 1990 | Billfisch Exploration Co., Inc. | Lehrer #16A | 3,000 | 48133385 |
| 373772 | May 29, 1990 | May 29, 1990 | Hagen-Greenbriar Expl. Corp. | Weems, M. L. #1C | 6,990 | 48100640 |
| 373582 | May 22, 1990 | May 22, 1990 | Westhall Associates, Inc. | Sorrel #1 | 5,200 | 48133384 |
| 373445 | May 22, 1990 | May 22, 1990 | Ernest Operating Company | Zboril, Frank #1 | 7,000 | 48133382 |
| 373445Amendment | May 22, 1990 | May 22, 1990 | Ernest Operating Company | Zboril, Frank #1 | 7,000 | 48133382 |
| 373445Amendment | May 22, 1990 | May 22, 1990 | Ernest Operating Company | Zboril, Frank #1 | 7,000 | 48133382 |
| 373451 | May 21, 1990 | May 21, 1990 | Albrecht, Phil A., Jr. | Willis, Gwen D. et Al #2 | 5,270 | 48133383 |
| 373165 | May 10, 1990 | May 10, 1990 | Zietlow Oil Co., Inc. | Wintermann #1 | 8,500 | 48133381 |
| 373112 | May 9, 1990 | May 9, 1990 | Anexco | Locke #1 | 5,000 | 48133380 |
| 372939 | May 9, 1990 | May 9, 1990 | Haas, C. F. Oil & Gas Inc. | Daboval, C. J. #A 6 | 7,508 | 48132299 |
| 372939Amendment | May 9, 1990 | May 9, 1990 | Haas, C. F. Oil & Gas Inc. | Daboval, C. J. #A 6 | 7,508 | 48132299 |
| 369667 | May 9, 1990 | May 9, 1990 | Tredegar Properties, Inc. | Konviska, Dolly #1 | 7,250 | 48132639 |
| 372898 | May 8, 1990 | May 8, 1990 | North Central Oil Corp. | Patos, Inc. #2 | 5,300 | 48133379 |
| 372940 | May 7, 1990 | May 7, 1990 | Howell Petroleum Corporation | Kubela Mineral Trust #3 | 6,113 | 48132795 |
| 372829 | May 3, 1990 | May 3, 1990 | 1988 Indexgeo JV | Outlar Gas Unit #1 | 4,000 | 48133378 |
| 372657 | Apr 26, 1990 | Apr 26, 1990 | Union Expl. Partners, Ltd. | Lancaster, W.H. #3 | 7,500 | 48101745 |
| 371845 | Apr 26, 1990 | Apr 26, 1990 | Double J Oil Company | Wiesner #1 | 7,300 | 48133991 |
| 372579 | Apr 25, 1990 | Apr 25, 1990 | Greenhill Petroleum Corporation | Weriwether, Ednamaye et Al #1 | 14,500 | 48133377 |
| 372442 | Apr 25, 1990 | Apr 25, 1990 | Cox & Perkins Exploration, Inc. | Koudela #1 | 13,500 | 48132880 |
| 372492 | Apr 23, 1990 | Apr 23, 1990 | Atapco | Taylor #2 | 5,000 | 48133375 |