| 475175 | Apr 9, 1998 | Apr 9, 1998 | Coda Energy, Inc. | Shafter Lake, San Andres Unit #49000338411 | 5,000 |
| 475132 | Apr 8, 1998 | Apr 8, 1998 | Coda Energy, Inc. | Shafter Lake, San Andres Unit #44800338410 | 5,000 |
| 475131 | Apr 8, 1998 | Apr 8, 1998 | Coda Energy, Inc. | Shafter Lake, San Andres Unit #44900338409 | 5,000 |
| 474906 | Apr 3, 1998 | Apr 3, 1998 | Nes Permian Basin, L.P. | Permian Brine-Grimmett Bros #1WD00338404 | 5,500 |
| 474962 | Apr 2, 1998 | Apr 2, 1998 | Minihan Oil & Gas Corporation | University "27-11 A" #200338405 | 4,800 |
| 474961 | Apr 2, 1998 | Apr 2, 1998 | Minihan Oil & Gas Corporation | University "27-11" #800338408 | 4,800 |
| 474960 | Apr 2, 1998 | Apr 2, 1998 | Minihan Oil & Gas Corporation | University "27-11" #1200338407 | 4,800 |
| 474958 | Apr 2, 1998 | Apr 2, 1998 | Minihan Oil & Gas Corporation | University "27-11" #700338406 | 4,800 |
| 474770 | Mar 30, 1998 | Mar 30, 1998 | Qualia, C. F. Operating Inc. | Allar #400338403 | 7,700 |
| 474763 | Mar 27, 1998 | Mar 27, 1998 | Arco Permian | Univ. 11 Sec. 13 #3B00330116 | 8,130 |
| 473547 | Mar 27, 1998 | Mar 27, 1998 | Kenworthy Oil Company | Holt, O. B. Jr. Est #400338380 | 4,750 |
| 474776 | Mar 26, 1998 | Mar 26, 1998 | Orbitron Operating Corp. | University 12-14 #200337497 | 3,300 |
| 474558 | Mar 19, 1998 | Mar 19, 1998 | Lomak Production Company | West Fuhrman-Mascho Unit #14900338399 | 4,900 |
| 474556 | Mar 19, 1998 | Mar 19, 1998 | Lomak Production Company | West Fuhrman-Mascho #14800338398 | 4,900 |
| 474555 | Mar 19, 1998 | Mar 19, 1998 | Lomak Production Company | West Fuhrman-Mascho Unit #14600338400 | 4,900 |
| 474553 | Mar 19, 1998 | Mar 19, 1998 | Lomak Production Company | West Fuhrman-Mascho Unit #14000338401 | 4,900 |
| 474552 | Mar 19, 1998 | Mar 19, 1998 | Lomak Production Company | West Fuhrman-Mascho Unit #13700338402 | 4,900 |
| 474551 | Mar 19, 1998 | Mar 19, 1998 | Lomak Production Company | West Fuhrman-Mascho Unit #13000338397 | 4,900 |
| 474550 | Mar 19, 1998 | Mar 19, 1998 | Lomak Production Company | West Fuhrman-Mascho Unit #10000338396 | 4,900 |
| 474550Amendment | Mar 19, 1998 | Mar 19, 1998 | Lomak Production Company | West Fuhrman-Mascho Unit #10000338396 | 4,900 |
| 474444 | Mar 17, 1998 | Mar 17, 1998 | Titan Resources I, Inc. | Fasken Block "CB" a/C 2 #3H00338395 | 15,155 |
| 474444Amendment | Mar 17, 1998 | Mar 17, 1998 | Titan Resources I, Inc. | Fasken Block "CB" a/C 2 #3H00338395 | 15,155 |
| 474343 | Mar 13, 1998 | Mar 13, 1998 | Coda Energy, Inc. | Shafter Lake San Andres Unit #44500338392 | 5,000 |
| 474342 | Mar 13, 1998 | Mar 13, 1998 | Coda Energy, Inc. | Shafter Lake San Andrews Unit #44000338391 | 5,000 |
| 474341 | Mar 13, 1998 | Mar 13, 1998 | Coda Energy, Inc. | Shafter Lake San Andres Unit #45300338393 | 5,000 |
| 474340 | Mar 13, 1998 | Mar 13, 1998 | Coda Energy, Inc. | Shafter Lake San Andres Unit #45800338394 | 5,000 |
| 474185 | Mar 13, 1998 | Mar 13, 1998 | Burleson, Lewis B. Inc. | University D #600338388 | 4,700 |
| 473314 | Mar 13, 1998 | Mar 13, 1998 | MW Petroleum Corporation | University -AB- #300337254 | 8,000 |
| 474305 | Mar 12, 1998 | Mar 12, 1998 | Coda Energy, Inc. | Shafter Lake San Andres Unit #45700338390 | 5,000 |
| 474266 | Mar 12, 1998 | Mar 12, 1998 | Minihan Oil & Gas Corporation | University "27-11" #500338389 | 5,000 |
| 474118 | Mar 11, 1998 | Mar 11, 1998 | Minihan Oil & Gas Corporation | Bitler #100338387 | 4,900 |
| 473777 | Mar 10, 1998 | Mar 10, 1998 | Union Oil Company of California | Dollarhide Unit #4708DH00334311 | 8,960 |
| 473776 | Mar 10, 1998 | Mar 10, 1998 | Union Oil Company of California | Dollarhide Unit #706DH00336335 | 8,700 |
| 473947 | Mar 9, 1998 | Mar 9, 1998 | Cotton Valley Operating Company | Spinks, Jessie M. "B" #2H00302594 | 4,407 |
| 473967 | Mar 6, 1998 | Mar 6, 1998 | Cross Timbers Operating Company | University 9B #800338384 | 10,700 |
| 474104 | Mar 5, 1998 | Mar 5, 1998 | Lomak Production Company | West Fuhrman-Mascho Unit #12200338386 | 4,900 |
| 474100 | Mar 5, 1998 | Mar 5, 1998 | Lomak Production Company | West Fuhrman-Mascho Unit #11300338385 | 4,900 |
| 473890 | Mar 2, 1998 | Mar 2, 1998 | Coda Energy, Inc. | Shafter Lake San Andres Unit #45200338383 | 5,000 |
| 473678 | Feb 27, 1998 | Feb 27, 1998 | Cross Timbers Operating Company | University 9C #800338382 | 10,700 |
| 473768 | Feb 26, 1998 | Feb 26, 1998 | Union Oil Company of California | Dollarhide Unit #4606DH00334574 | 9,085 |
| 473648 | Feb 24, 1998 | Feb 24, 1998 | Cross Timbers Operating Company | Texas N #500338381 | 10,700 |
| 473613 | Feb 24, 1998 | Feb 24, 1998 | Exxon Corp. | Parker, J. E. a/C 3A #600302984 | 8,955 |
| 471616 | Feb 20, 1998 | Feb 20, 1998 | Seaboard Oil Company | Cothes "B" #200338342 | 6,200 |
| 472193 | Feb 18, 1998 | Feb 18, 1998 | Texland/JMC Joint Venture | Scarborough "C" #1400338358 | 4,900 |
| 473344 | Feb 17, 1998 | Feb 17, 1998 | Union Oil Company of California | Dollarhide Unit #802DH00336386 | 8,700 |
| 470938 | Feb 17, 1998 | Feb 17, 1998 | Phillips Petroleum Company | University Andrews #4300304646 | 7,683 |
| 473266 | Feb 13, 1998 | Feb 13, 1998 | Verdad Oil & Gas Corporation | Bourg #200338371 | 8,500 |
| 473132 | Feb 13, 1998 | Feb 13, 1998 | Mariah Energy Corp. | Magutex (Queen) Unit #3318R00338379 | 5,000 |
| 473131 | Feb 13, 1998 | Feb 13, 1998 | Mariah Energy Corp. | Magutex (Queen) Unit #1319R00338378 | 5,000 |
| 473130 | Feb 13, 1998 | Feb 13, 1998 | Mariah Energy Corp. | Magutex Queen Unit #51800338377 | 5,000 |
| 473129 | Feb 13, 1998 | Feb 13, 1998 | Mariah Energy Corp. | Maqutex (Queen) Unit #61800338376 | 5,000 |
| 473128 | Feb 13, 1998 | Feb 13, 1998 | Mariah Energy Corp. | Magutex Queen Unit #81900338375 | 5,000 |
| 473127 | Feb 13, 1998 | Feb 13, 1998 | Mariah Energy Corp. | Magutex Queen Unit #1119R00338374 | 5,000 |
| 473126 | Feb 13, 1998 | Feb 13, 1998 | Mariah Energy Corp. | Magutex Queen Unit #71800338373 | 5,000 |
| 473125 | Feb 13, 1998 | Feb 13, 1998 | Mariah Energy Corp. | Magutex Queen Unit #4218R00338372 | 5,000 |
| 473300 | Feb 12, 1998 | Feb 12, 1998 | Phillips Petroleum Company | University Andrews #55W00304772 | 5,370 |
| 473300Amendment | Feb 12, 1998 | Feb 12, 1998 | Phillips Petroleum Company | University Andrews #5500304772 | 6,256 |
| 473157 | Feb 12, 1998 | Feb 12, 1998 | Minihan Oil & Gas Corporation | University "28-11 B" #200338369 | 5,000 |
| 473156 | Feb 12, 1998 | Feb 12, 1998 | Minihan Oil & Gas Corporation | University "27-11" #400338368 | 5,000 |
| 473155 | Feb 12, 1998 | Feb 12, 1998 | Minihan Oil & Gas Corporation | University "27-11" #300338370 | 5,000 |
| 473005 | Feb 5, 1998 | Feb 5, 1998 | Minihan Oil & Gas Corporation | University "32-11" #200338367 | 5,000 |
| 471802 | Feb 5, 1998 | Feb 5, 1998 | Texland/JMC Joint Venture | Logsdon "C" #5100338804 | 4,900 |
| 472918 | Feb 4, 1998 | Feb 4, 1998 | Titan Resources I, Inc. | U-Tex # 36989 #400336939 | 13,000 |
| 472811 | Feb 4, 1998 | Feb 4, 1998 | Fasken Oil and Ranch, Ltd. | Fee "Y" #2400338366 | 6,000 |
| 472728 | Jan 30, 1998 | Jan 30, 1998 | Mariah Energy Corp. | Magutex Queen Unit #51700338365 | 5,000 |
| 472665 | Jan 28, 1998 | Jan 28, 1998 | Blue Dolphin Exploration Company | University "F" #311H00338364 | 3,300 |
| 472655 | Jan 26, 1998 | Jan 26, 1998 | Union Oil Company of California | Parker Unit #8418ER00338363 | 9,300 |
| 472652 | Jan 26, 1998 | Jan 26, 1998 | Union Oil Company of California | Dollarhide Unit #1301DH00336399 | 8,764 |
| 472601 | Jan 26, 1998 | Jan 26, 1998 | Minihan Oil & Gas Corporation | University "5" #200338003 | 5,000 |
| 472594 | Jan 26, 1998 | Jan 26, 1998 | Cross Timbers Operating Company | State University AO #1400338362 | 10,700 |
| 472594Amendment | Jan 26, 1998 | Jan 26, 1998 | Cross Timbers Operating Company | State University AO #14H00338362 | 13,000 |
| 472501 | Jan 26, 1998 | Jan 26, 1998 | Enron Oil & Gas Company | Holt #20100338361 | 13,200 |
| 472550 | Jan 23, 1998 | Jan 23, 1998 | Fasken Oil and Ranch, Ltd. | Fee "AG" #100338360 | 6,000 |
| 472385 | Jan 23, 1998 | Jan 23, 1998 | Cross Timbers Operating Company | Scheumber, Jean "C" #1010537758 | 8,250 |
| 472421 | Jan 22, 1998 | Jan 22, 1998 | Minihan Oil & Gas Corporation | University Consol. Xii #2000304218 | 4,900 |
| 472398 | Jan 20, 1998 | Jan 20, 1998 | Enron Oil & Gas Company | Holt #90100338359 | 13,500 |
| 472398Amendment | Jan 20, 1998 | Jan 20, 1998 | Enron Oil & Gas Company | Holt #90100338359 | 9,183 |
| 472194 | Jan 15, 1998 | Jan 15, 1998 | Texland/JMC Joint Venture | Logsdon "E" #2200338357 | 4,900 |
| 472194Amendment | Jan 15, 1998 | Jan 15, 1998 | Texland/JMC Joint Venture | Logsdon "E" #2200338357 | 4,900 |
| 471970 | Jan 13, 1998 | Jan 13, 1998 | Union Oil Company of California | Southwest Andrews Unit #5101A00338354 | 9,300 |
| 471969 | Jan 13, 1998 | Jan 13, 1998 | Union Oil Company of California | Southwest Andrews Unit #5301A00338353 | 9,300 |
| 471968 | Jan 13, 1998 | Jan 13, 1998 | Union Oil Company of California | Southwest Andrews Unit #7301A00338352 | 9,300 |
| 471967 | Jan 13, 1998 | Jan 13, 1998 | Union Oil Company of California | Southwest Andrews Unit #3101A00338349 | 9,300 |
| 471965 | Jan 13, 1998 | Jan 13, 1998 | Union Oil Company of California | Southwest Andrews Unit #7718N00338351 | 9,300 |
| 471964 | Jan 13, 1998 | Jan 13, 1998 | Union Oil Company of California | Southwest Andrews Unit #7101A00338350 | 9,300 |
| 472069 | Jan 12, 1998 | Jan 12, 1998 | Hicon Gas Producers, Inc. | University 31-9 #100338356 | 3,500 |
| 471902 | Jan 12, 1998 | Jan 12, 1998 | Union Oil Company of California | Dollarhide Unit #3601D00303543 | 8,500 |
| 471905 | Jan 9, 1998 | Jan 9, 1998 | Blue Dolphin Exploration Company | University "G" #312H00338355 | 3,300 |
| 470857 | Jan 8, 1998 | Jan 8, 1998 | Enron Oil & Gas Company | Holt #70100338332 | 13,200 |
| 471860 | Jan 6, 1998 | Jan 6, 1998 | Hilliard Energy, Inc. | University 8-13 #200338348 | 12,000 |
| 471846 | Jan 5, 1998 | Jan 5, 1998 | Texland/JMC Joint Venture | Logdson "E" #2000338347 | 4,900 |
| 471721 | Jan 5, 1998 | Jan 5, 1998 | Ausland Production Company | Mobil University "4" #200338345 | 4,700 |
| 471721Amendment | Jan 5, 1998 | Jan 5, 1998 | Parish, John R. | Mobil University "4" #200338345 | 4,700 |
| 471716 | Jan 5, 1998 | Jan 5, 1998 | Maynard Oil Co. | Logsdon, C. W. #200338344 | 5,000 |
| 471698 | Jan 5, 1998 | Jan 5, 1998 | Exxon Corp. | Means, J S A/C 4 #32500332701 | 9,460 |
| 471494 | Jan 2, 1998 | Jan 2, 1998 | Caprock Operating, Inc. | North Means Queen Sand Unit #250500338341 | 4,300 |
| 471651 | Dec 31, 1997 | Dec 31, 1997 | Texland/JMC Joint Venture | Logsdon "C" #4900338343 | 7,500 |
| 471339 | Dec 30, 1997 | Dec 30, 1997 | Union Oil Company of California | Southwest Andrews Unit #5718N00338340 | 9,300 |
| 471338 | Dec 30, 1997 | Dec 30, 1997 | Union Oil Company of California | Southwest Andrews Unit #5518N00338339 | 9,300 |
| 471336 | Dec 30, 1997 | Dec 30, 1997 | Union Oil Company of California | Southwest Andrews Unit #3718N00338338 | 9,300 |