| 488087 | Sep 30, 1999 | Sep 30, 1999 | Producers Operating Co., Inc. | Townsend #507731739 | 1,700 |
| 486759 | Aug 24, 1999 | Aug 24, 1999 | Lane Operating Company | Harris #107734647 | 6,148 |
| 486463 | Aug 16, 1999 | Aug 16, 1999 | Bridwell Oil Co. | Halsell -F- #807734795 | 6,200 |
| 485551 | Jul 13, 1999 | Jul 13, 1999 | 3-T Exploration, Inc. | Pennartz-Scaling Unit #107703559 | 6,000 |
| 485411 | Jun 23, 1999 | Jun 23, 1999 | Muirfield Exploration, Ltd. | Firestone, Tom #2607734794 | 2,000 |
| 485410 | Jun 23, 1999 | Jun 23, 1999 | Muirfield Exploration, Ltd. | Firestone, Tom #2507734793 | 2,000 |
| 485410Amendment | Jun 23, 1999 | Jun 23, 1999 | Muirfield Exploration, Ltd. | Firestone, Tom #2507734793 | 2,000 |
| 484539 | May 25, 1999 | May 25, 1999 | Hood, J. Frank, Jr. | Fleming #107734792 | 1,400 |
| 484158 | May 5, 1999 | May 5, 1999 | Bridwell Oil Exploration, Inc. | Byers Brothers Subdivision #407734791 | 2,781 |
| 484158Amendment | May 5, 1999 | May 5, 1999 | Bridwell Oil Exploration, Inc. | Byers Brothers Subdivision #407734791 | 1,800 |
| 483771 | Apr 19, 1999 | Apr 19, 1999 | Muirfield Exploration, Ltd. | Firestone, Tom #2407734790 | 2,000 |
| 483776 | Apr 9, 1999 | Apr 9, 1999 | Woods Operating Co., Inc. | Stine #107734789 | 6,000 |
| 483162 | Mar 22, 1999 | Mar 22, 1999 | STB Energy Inc. | Lyles, J. T. #207731679 | 6,300 |
| 483243 | Mar 11, 1999 | Mar 11, 1999 | Pruitt Oil & Gas | Collie #207732785 | 2,000 |
| 482529 | Feb 9, 1999 | Feb 9, 1999 | Cholla Petroleum, Inc. | Roe #207734785 | 6,700 |
| 481185 | Dec 3, 1998 | Dec 3, 1998 | Talon Production, Inc. | Taylor #107734788 | 1,999 |
| 481142 | Nov 25, 1998 | Nov 25, 1998 | 3-T Exploration, Inc. | Starnes-Tally Unit #107734787 | 6,050 |
| 479426 | Nov 12, 1998 | Nov 12, 1998 | G E Operating, Inc. | Hoff, Iva Mae #207731866 | 6,400 |
| 480580 | Nov 11, 1998 | Nov 11, 1998 | Jackson, Jeral W. Inc. | Cmtt #101907734786 | 1,200 |
| 480313 | Nov 6, 1998 | Nov 6, 1998 | Bridwell Oil Exploration, Inc. | Byers Brothers Subdivision #307734783 | 4,000 |
| 480511 | Oct 29, 1998 | Oct 29, 1998 | Cholla Petroleum, Inc. | Roe #207734785 | 3,800 |
| 480510 | Oct 29, 1998 | Oct 29, 1998 | Cholla Petroleum, Inc. | Roe #107734784 | 6,700 |
| 479729 | Oct 27, 1998 | Oct 27, 1998 | Taylor, G. E. | Haas #107731693 | 5,740 |
| 480140 | Oct 14, 1998 | Oct 14, 1998 | Winfrey Oil Co., Inc. | Watson #107734782 | 6,200 |
| 479691 | Sep 25, 1998 | Sep 25, 1998 | Double Eagle Petroleum Corp | Lyles, J. T. #207731679 | 6,226 |
| 479036 | Sep 9, 1998 | Sep 9, 1998 | Bridwell Oil Co. | Meurer -B- #107734781 | 4,000 |
| 479143 | Aug 31, 1998 | Aug 31, 1998 | Producers Operating Co., Inc. | Stine, Ward A #307703128 | 1,904 |
| 477646 | Jul 7, 1998 | Jul 7, 1998 | Talon Production, Inc. | Hanna #107734780 | 1,999 |
| 477678 | Jul 2, 1998 | Jul 2, 1998 | Producers Operating Co., Inc. | Enserch "60" #16007734779 | 2,000 |
| 477677 | Jul 2, 1998 | Jul 2, 1998 | Producers Operating Co., Inc. | Enserch "45" #14507734778 | 2,000 |
| 477677Amendment | Jul 2, 1998 | Jul 2, 1998 | Producers Operating Co., Inc. | Enserch "45" #14507734778 | 2,000 |
| 477676 | Jul 2, 1998 | Jul 2, 1998 | Producers Operating Co., Inc. | Enserch "36" #13607734777 | 2,000 |
| 477674 | Jul 2, 1998 | Jul 2, 1998 | Producers Operating Co., Inc. | Enserch "35" #13507734776 | 2,000 |
| 477673 | Jul 2, 1998 | Jul 2, 1998 | Producers Operating Co., Inc. | Enserch "34" #13407734775 | 2,000 |
| 477540 | Jul 1, 1998 | Jul 1, 1998 | Lane Operating Company | Edwards #107734544 | 6,625 |
| 477205 | Jun 22, 1998 | Jun 22, 1998 | Bridwell Oil Exploration, Inc. | Byers Brothers Subdivision #2A07734774 | 4,000 |
| 477205Amendment | Jun 22, 1998 | Jun 22, 1998 | Bridwell Oil Exploration, Inc. | Byers Brothers Sub. Division #2A07734774 | 2,780 |
| 476543 | May 28, 1998 | May 28, 1998 | Lane Operating Company | Moore-Trout Unit #107734773 | 7,000 |
| 475636 | May 4, 1998 | May 4, 1998 | Bridwell Oil Co. | Bridwell River Ranch #8407734746 | 4,754 |
| 475376 | Apr 20, 1998 | Apr 20, 1998 | Patrick, Joe Ben | Stine "B" #1A07734772 | 1,999 |
| 474752 | Apr 2, 1998 | Apr 2, 1998 | Patrick, Joe Ben | Patrick M. #107734771 | 2,000 |
| 473840 | Mar 5, 1998 | Mar 5, 1998 | Lynx Energy Company, Inc. | Harrison & Allen #4707734770 | 2,000 |
| 473838 | Mar 5, 1998 | Mar 5, 1998 | Lynx Energy Company, Inc. | Harrison & Allen #4807734769 | 2,000 |
| 472981 | Feb 6, 1998 | Feb 6, 1998 | Bridwell Oil Co. | Edwards, G. W. -A- #107700682 | 5,975 |
| 471830 | Jan 13, 1998 | Jan 13, 1998 | Playa Minerals & Energy, Inc. | Boddy #4F07734765 | 1,900 |
| 472066 | Jan 9, 1998 | Jan 9, 1998 | Producers Operating Co., Inc. | Wilson-Frey 74 #107407734702 | 1,723 |
| 472064 | Jan 9, 1998 | Jan 9, 1998 | Producers Operating Co., Inc. | Wilson-Frey 73 #107307734701 | 1,722 |
| 471835 | Jan 7, 1998 | Jan 7, 1998 | Playa Minerals & Energy, Inc. | Boddy #9F07734760 | 1,900 |
| 471834 | Jan 7, 1998 | Jan 7, 1998 | Playa Minerals & Energy, Inc. | Boddy #8F07734761 | 1,900 |
| 471833 | Jan 7, 1998 | Jan 7, 1998 | Playa Minerals & Energy, Inc. | Boddy #7F07734762 | 1,900 |
| 471832 | Jan 7, 1998 | Jan 7, 1998 | Playa Minerals & Energy, Inc. | Boddy #6F07734763 | 1,900 |
| 471831 | Jan 7, 1998 | Jan 7, 1998 | Playa Minerals & Energy, Inc. | Boddy #5F07734764 | 1,900 |
| 471829 | Jan 7, 1998 | Jan 7, 1998 | Playa Minerals & Energy, Inc. | Boddy #3F07734766 | 1,900 |
| 471829Amendment | Jan 7, 1998 | Jan 7, 1998 | Playa Minerals & Energy, Inc. | Boddy #3F07734766 | 1,900 |
| 471828 | Jan 7, 1998 | Jan 7, 1998 | Playa Minerals & Energy, Inc. | Boddy #2F07734767 | 1,900 |
| 471827 | Jan 7, 1998 | Jan 7, 1998 | Playa Minerals & Energy, Inc. | Boddy #1F07734768 | 1,900 |
| 471279 | Dec 30, 1997 | Dec 30, 1997 | Bridwell Oil Exploration, Inc. | Byers Brothers Subdivision #207734758 | 4,000 |
| 471136 | Dec 15, 1997 | Dec 15, 1997 | Lane Operating Company | Scott "B" #207734759 | 4,600 |
| 470420 | Dec 1, 1997 | Dec 1, 1997 | Montgomery Petroleum, Inc. | George, W. A. #2907734756 | 1,300 |
| 470419 | Dec 1, 1997 | Dec 1, 1997 | Montgomery Petroleum, Inc. | Goetze, L. R. & F. M. #1407734755 | 1,300 |
| 470416 | Dec 1, 1997 | Dec 1, 1997 | Montgomery Petroleum, Inc. | Hansard J. B. L. #3207734754 | 1,300 |
| 470562 | Nov 25, 1997 | Nov 25, 1997 | Gulf Central Petroleum Corp. | Liggett, G. E. #1A07734757 | 1,875 |
| 470167 | Nov 17, 1997 | Nov 17, 1997 | Muirfield Exploration, Ltd. | Thornberry #3107734753 | 2,000 |
| 469301 | Nov 4, 1997 | Nov 4, 1997 | Burns, P. C. Oil Producers Inc. | Scaling, G. W. #30307705382 | 4,598 |
| 468184 | Sep 30, 1997 | Sep 30, 1997 | Muirfield Exploration, Ltd. | Saner-Lomax #14907734750 | 2,000 |
| 467808 | Sep 24, 1997 | Sep 24, 1997 | Bridwell Oil Co. | Bridwell River Ranch #8307734749 | 4,900 |
| 467698 | Sep 17, 1997 | Sep 17, 1997 | Muirfield Exploration, Ltd. | Thornberry #3307734748 | 2,000 |
| 467289 | Sep 8, 1997 | Sep 8, 1997 | Producers Operating Co., Inc. | McCormick, Ed Graf No. 1 #107733802 | 2,000 |
| 466708 | Sep 2, 1997 | Sep 2, 1997 | Bridwell Oil Co. | Bridwell River Ranch #8207734747 | 6,200 |
| 466707 | Aug 28, 1997 | Aug 28, 1997 | Bridwell Oil Co. | Bridwell River Ranch #8407734746 | 5,600 |
| 466706 | Aug 28, 1997 | Aug 28, 1997 | Bridwell Oil Co. | Bridwell River Ranch #8507734745 | 6,200 |
| 465647 | Aug 5, 1997 | Aug 5, 1997 | Hood, J. Frank, Jr. | Texaco #207734744 | 2,000 |
| 464880 | Jul 14, 1997 | Jul 14, 1997 | Producers Operating Co., Inc. | Graf, Ray #107702048 | 1,885 |
| 464549 | Jul 14, 1997 | Jul 14, 1997 | Continental Export Corp. | Bailey, Ada #207734743 | 4,999 |
| 464070 | Jul 7, 1997 | Jul 7, 1997 | Massie Oil Company | Gohlke #2707734742 | 1,850 |
| 463191 | Jun 12, 1997 | Jun 12, 1997 | Armour, Widd | Stine "B" #107734741 | 1,999 |
| 462895 | May 30, 1997 | May 30, 1997 | Muirfield Exploration, Ltd. | Harrison & Allen #4107734740 | 2,000 |
| 462894 | May 30, 1997 | May 30, 1997 | Muirfield Exploration, Ltd. | Joint #1207734739 | 2,000 |
| 462612 | May 29, 1997 | May 29, 1997 | Talon Production, Inc. | Stine A #9607734737 | 1,800 |
| 462613 | May 22, 1997 | May 22, 1997 | Talon Production, Inc. | Stine A #9707734738 | 1,000 |
| 462178 | May 15, 1997 | May 15, 1997 | Bennett Production Corporation | Seabourn #107734736 | 7,200 |
| 461259 | Apr 17, 1997 | Apr 17, 1997 | Lone Star Gas Co. | New York City Gas Storage Unit #707734735 | 6,500 |
| 460522 | Apr 7, 1997 | Apr 7, 1997 | Stine, Ward L.oil Company | Stine, Ward L. "M" #10M07734733 | 600 |
| 460523 | Apr 2, 1997 | Apr 2, 1997 | Stine, Ward L.oil Company | Stine, Ward L. "M" #11M07734734 | 2,000 |
| 460219 | Mar 21, 1997 | Mar 21, 1997 | Muirfield Exploration, Ltd. | Joint #307734559 | 1,400 |
| 459971 | Mar 20, 1997 | Mar 20, 1997 | Bridwell Oil Exploration | Byers Brothers Subdivision #107734732 | 4,000 |
| 459743 | Mar 13, 1997 | Mar 13, 1997 | Lane Operating Company | Scott "B" #107734731 | 4,600 |
| 459477 | Mar 5, 1997 | Mar 5, 1997 | Strawn Drlg. Co. | Halsell, Furd #2207734730 | 4,900 |
| 459002 | Feb 26, 1997 | Feb 26, 1997 | Pryor Petroleum Corporation | Powell #107734729 | 4,900 |
| 458728 | Feb 18, 1997 | Feb 18, 1997 | Muirfield Exploration, Ltd. | Harrison & Allen #4007734727 | 2,000 |
| 458726 | Feb 18, 1997 | Feb 18, 1997 | Muirfield Exploration, Ltd. | Harrison & Allen #3907734728 | 2,000 |
| 457107 | Jan 14, 1997 | Jan 14, 1997 | Continental Export Corp. | Bailey, Ada #107701569 | 3,800 |
| 457276 | Jan 10, 1997 | Jan 10, 1997 | Muirfield Exploration, Ltd. | Harrison & Allen #3807734726 | 2,000 |
| 457276Amendment | Jan 10, 1997 | Jan 10, 1997 | Muirfield Exploration, Ltd. | Harrison & Allen #3807734726 | 2,000 |
| 457275 | Jan 10, 1997 | Jan 10, 1997 | Muirfield Exploration, Ltd. | Harrison & Allen #3707734725 | 2,000 |
| 456753 | Jan 6, 1997 | Jan 6, 1997 | O'Neal, Lindell | Spring, Earl #6307703062 | 5,990 |
| 456353 | Dec 16, 1996 | Dec 16, 1996 | Springfield Oil Services Inc. | Spikes #3A07734724 | 9,000 |
| 456353Amendment | Dec 16, 1996 | Dec 16, 1996 | Springfield Oil Services Inc. | Spikes #3A07734724 | 9,000 |
| 456353Amendment | Dec 16, 1996 | Dec 16, 1996 | Springfield Oil Services Inc. | Spikes #3A07734724 | 9,000 |
| 456216 | Dec 13, 1996 | Dec 13, 1996 | Lane Operating Company | Sanders #207734723 | 4,600 |