| 476656 | May 27, 1998 | May 27, 1998 | Samedan Oil Corporation | Chevron Btlt #1 | 11,700 | 42733114 |
| 476269 | May 26, 1998 | May 26, 1998 | Pg&e Gas Transmission, Tex. Corp | Rectifier ZP-40 #155 | 280 | 42733113 |
| 476269Amendment | May 26, 1998 | May 26, 1998 | Pg&e Gas Transmission, Tex. Corp | Rectifier ZP-40 #225 | 500 | 42733113 |
| 476392 | May 18, 1998 | May 18, 1998 | Coastal Oil & Gas Corporation | Guerra GU "G" #D 3 | 10,335 | 42732476 |
| 476253 | May 13, 1998 | May 13, 1998 | Conoco Inc. | Slick, T. B. Estate A-527 #186 | 8,100 | 42733112 |
| 475432 | May 13, 1998 | May 13, 1998 | Exxon Corp. | East, Alice K., Mrs. State #3 | 4,303 | 42730690 |
| 476124 | May 8, 1998 | May 8, 1998 | Oryx Energy Company | Olivares, A. #24 | 9,900 | 42733111 |
| 476124Amendment | May 8, 1998 | May 8, 1998 | Kerr-McGee Corporation | Olivares, A. #24 | 10,700 | 42733111 |
| 476124Amendment | May 8, 1998 | May 8, 1998 | Kerr-McGee Corporation | Olivares, A. #24 | 11,200 | 42733111 |
| 476058 | May 6, 1998 | May 6, 1998 | Oryx Energy Company | Hall, J. F. State -A- #18 | 7,600 | 42733110 |
| 475970 | May 5, 1998 | May 5, 1998 | Coastal Oil & Gas Corporation | Guerra GU "C" #10 | 15,000 | 42733109 |
| 475908 | May 4, 1998 | May 4, 1998 | Tri-C Resources, Inc. | Coates #6 | 6,000 | 42733108 |
| 475787 | Apr 29, 1998 | Apr 29, 1998 | Oryx Energy Company | Slick Estate -C- #7 | 8,112 | 42732026 |
| 475787Amendment | Apr 29, 1998 | Apr 29, 1998 | Kerr-McGee Corporation | Slick Estate -C- #7 | 8,112 | 42732026 |
| 475723 | Apr 27, 1998 | Apr 27, 1998 | Conoco Inc. | T. B. Slick Estate A-527 #185 | 6,220 | 42733107 |
| 475723Amendment | Apr 27, 1998 | Apr 27, 1998 | Conoco Inc. | Slick, T. B. Estate A-527 #185 | 6,220 | 42733107 |
| 475501 | Apr 21, 1998 | Apr 21, 1998 | Oryx Energy Company | Garcia, I. Y. #16 | 9,047 | 42732531 |
| 475272 | Apr 14, 1998 | Apr 14, 1998 | Edge Petroleum Oper. Co., Inc. | Roos #2 | 5,000 | 42733106 |
| 475123 | Apr 10, 1998 | Apr 10, 1998 | Bass Enterprises Production Co. | Bloomberg #18 | 7,500 | 42733102 |
| 475123Amendment | Apr 10, 1998 | Apr 10, 1998 | Bass Enterprises Production Co. | Bloomberg #18 | 7,500 | 42733102 |
| 475123Amendment | Apr 10, 1998 | Apr 10, 1998 | Bass Enterprises Production Co. | Bloomberg #18 | 7,500 | 42733102 |
| 475123Amendment | Apr 10, 1998 | Apr 10, 1998 | Bass Enterprises Production Co. | Bloomberg #18 | 7,500 | 42733102 |
| 475147 | Apr 8, 1998 | Apr 8, 1998 | Edge Petroleum Oper. Co., Inc. | Garza #1 | 7,200 | 42733105 |
| 475144 | Apr 8, 1998 | Apr 8, 1998 | Exxon Corp. | McGill Bros. #551 | 9,000 | 42733103 |
| 475143 | Apr 8, 1998 | Apr 8, 1998 | Exxon Corp. | McGill Bros. #552 | 9,000 | 42733104 |
| 475080 | Apr 6, 1998 | Apr 6, 1998 | Oryx Energy Company | Cardenas, R. R. #4 | 6,955 | 42732256 |
| 475079 | Apr 6, 1998 | Apr 6, 1998 | Oryx Energy Company | Hall, J. F. State -A- #15 | 8,194 | 42732199 |
| 474950 | Apr 6, 1998 | Apr 6, 1998 | Sanchez-O'Brien Oil & Gas Corp. | Orive, A. #7 | 5,300 | 42732660 |
| 474893 | Apr 1, 1998 | Apr 1, 1998 | Mortimer Exploration Company | Ricaby #1 | 6,000 | 42733101 |
| 474803 | Mar 27, 1998 | Mar 27, 1998 | Exxon Corp. | McGill Bros. #366 | 5,926 | 42704878 |
| 474705 | Mar 27, 1998 | Mar 27, 1998 | Bass Enterprises Production Co. | Bloomberg #16 | 13,000 | 42733099 |
| 474705Amendment | Mar 27, 1998 | Mar 27, 1998 | Bass Enterprises Production Co. | Bloomberg #16 | 13,000 | 42733099 |
| 474734 | Mar 26, 1998 | Mar 26, 1998 | Coastal Oil & Gas Corporation | Ramirez GU "E" #11 | 10,664 | 42732796 |
| 474733 | Mar 26, 1998 | Mar 26, 1998 | Coastal Oil & Gas Corporation | Guerra GU "D" #12 | 14,000 | 42733100 |
| 474590 | Mar 23, 1998 | Mar 23, 1998 | Bass Enterprises Production Co. | Bloomberg #15 | 7,500 | 42733097 |
| 474590Amendment | Mar 23, 1998 | Mar 23, 1998 | Bass Enterprises Production Co. | Bloomberg #15 | 7,500 | 42733097 |
| 474589 | Mar 23, 1998 | Mar 23, 1998 | Bass Enterprises Production Co. | Kent #1 | 13,000 | 42733098 |
| 474572 | Mar 20, 1998 | Mar 20, 1998 | Coastal Oil & Gas Corporation | State Park #3 | 12,800 | 42733096 |
| 457186Amendment | Mar 18, 1998 | Mar 18, 1998 | Epstein, Edwin a Jr Oper Co Inc | Guerra, et Al. #2 | 19,000 | 42732949 |
| 474426 | Mar 17, 1998 | Mar 17, 1998 | Oryx Energy Company | Laurel, C. #8 | 5,974 | 42731647 |
| 474154 | Mar 17, 1998 | Mar 17, 1998 | Exxon Corp. | McGill Bros #431 | 6,420 | 42730247 |
| 474154Amendment | Mar 17, 1998 | Mar 17, 1998 | Exxon Corp. | McGill Bros #431 | 6,420 | 42730247 |
| 474019 | Mar 11, 1998 | Mar 11, 1998 | Greenbrier Oper. Co. | Guerra, F. B. #1 | 9,500 | 42732690 |
| 474238 | Mar 10, 1998 | Mar 10, 1998 | Oryx Energy Company | Orive, A. #9 | 7,945 | 42732975 |
| 474018 | Mar 6, 1998 | Mar 6, 1998 | Greenbrier Oper. Co. | Guerra, F. B. #4 | 5,400 | 42732746 |
| 474033 | Mar 4, 1998 | Mar 4, 1998 | Oryx Energy Company | Montalvo, I. V. -C- #5 | 5,126 | 42700573 |
| 473959 | Mar 3, 1998 | Mar 3, 1998 | Kebo Oil & Gas, Inc. | Rodriguez #2 | 1,000 | 42733095 |
| 473858 | Feb 27, 1998 | Feb 27, 1998 | Linder Oil Company,a Partnership | Texaco Fee G.U. #4B | 4,200 | 42733094 |
| 473858Amendment | Feb 27, 1998 | Feb 27, 1998 | Lynx Energy Company, Inc. | Texaco Fee GU #4B | 4,200 | 42733094 |
| 473826 | Feb 26, 1998 | Feb 26, 1998 | Coastal Oil & Gas Corporation | Guerra GU "B" #7 | 12,420 | 42732677 |
| 472829 | Feb 26, 1998 | Feb 26, 1998 | Oryx Energy Company | Garcia, I. Y. #15 | 11,600 | 42733083 |
| 473787 | Feb 25, 1998 | Feb 25, 1998 | Fina Oil & Chemical Company | Slick, T. B. Estate #123 | 8,500 | 42733093 |
| 473787Amendment | Feb 25, 1998 | Feb 25, 1998 | Fina Oil & Chemical Company | Slick, T. B. Estate #123 | 8,500 | 42733093 |
| 473774 | Feb 25, 1998 | Feb 25, 1998 | Wynn-Crosby Energy, Inc. | Guerra, A. A #11 | 7,500 | 42733014 |
| 473747 | Feb 24, 1998 | Feb 24, 1998 | Oryx Energy Company | De Garcia, B. G. #49 | 8,300 | 42733092 |
| 473516 | Feb 24, 1998 | Feb 24, 1998 | Greenbrier Oper. Co. | Echols, George et Al #3 | 10,500 | 42733090 |
| 473461 | Feb 24, 1998 | Feb 24, 1998 | Acock Engineering & Assoc., Inc. | Saenz #2 | 7,550 | 42733089 |
| 473666 | Feb 23, 1998 | Feb 23, 1998 | Conoco Inc. | T. B. Slick Estate A-485 #184 | 7,970 | 42733091 |
| 473666Amendment | Feb 23, 1998 | Feb 23, 1998 | Conoco Inc. | Estate, T. B. Slick A-485 #184 | 7,970 | 42733091 |
| 473663 | Feb 23, 1998 | Feb 23, 1998 | Oryx Energy Company | Hall, C. M. -A- #7 | 6,700 | 42731711 |
| 473391 | Feb 17, 1998 | Feb 17, 1998 | Paladin-Hayes, L.L.C. | Cameron Gas Unit #1 | 9,000 | 42701356 |
| 473391Amendment | Feb 17, 1998 | Feb 17, 1998 | Paladin-Hayes, L.L.C. | Cameron Gas Unit #1 | 9,000 | 42701356 |
| 473343 | Feb 13, 1998 | Feb 13, 1998 | Coastal Oil & Gas Corporation | Guerra GU "D" #9 | 15,500 | 42733088 |
| 473320 | Feb 13, 1998 | Feb 13, 1998 | Samedan Oil Corporation | Martinez -B- #53 | 7,900 | 42733087 |
| 473220 | Feb 10, 1998 | Feb 10, 1998 | Oryx Energy Company | Montalvo, I. V. -C- #28 | 4,789 | 42700596 |
| 473147 | Feb 9, 1998 | Feb 9, 1998 | Exxon Corp. | McGill Bros. #432 | 6,630 | 42730244 |
| 473076 | Feb 6, 1998 | Feb 6, 1998 | Fina Oil & Chemical Company | Urschel, C. F. #7 | 8,000 | 42733085 |
| 473067 | Feb 6, 1998 | Feb 6, 1998 | Skrivanos Engineering, Inc. | Guerra #1 | 18,000 | 42733084 |
| 472783 | Jan 29, 1998 | Jan 29, 1998 | Oryx Energy Company | Hall, J. F. State -A #13 | 8,305 | 42732095 |
| 472772 | Jan 29, 1998 | Jan 29, 1998 | Conoco Inc. | Slick, T. B. A-485 #183 | 6,200 | 42733082 |
| 472771 | Jan 29, 1998 | Jan 29, 1998 | Conoco Inc. | Slick, T.B. Estate A-527 #182 | 7,305 | 42733081 |
| 472687 | Jan 27, 1998 | Jan 27, 1998 | Samedan Oil Corporation | Martinez -B- #52 | 7,700 | 42733080 |
| 472472 | Jan 21, 1998 | Jan 21, 1998 | Oryx Energy Company | Slick Estate -C- #12 | 10,000 | 42733079 |
| 472472Amendment | Jan 21, 1998 | Jan 21, 1998 | Oryx Energy Company | Slick Estate -C- #12 | 10,200 | 42733079 |
| 472471 | Jan 21, 1998 | Jan 21, 1998 | Oryx Energy Company | Slick Estate -C- #11 | 10,000 | 42733078 |
| 472197 | Jan 21, 1998 | Jan 21, 1998 | Energy Development Corp. | Villarreal #20A | 5,850 | 42704514 |
| 472196 | Jan 21, 1998 | Jan 21, 1998 | Energy Development Corp. | Villarreal #29 | 6,800 | 42700409 |
| 472307 | Jan 16, 1998 | Jan 16, 1998 | Samedan Oil Corporation | Martinez -B- #43R | 7,400 | 42733077 |
| 472164 | Jan 16, 1998 | Jan 16, 1998 | Barrett Brothers Oil & Gas, Inc. | Pirtle #1 | 9,000 | 42733076 |
| 472275 | Jan 15, 1998 | Jan 15, 1998 | Conoco Inc. | Slick, T.B. Estate A #171 | 9,000 | 42732740 |
| 472204 | Jan 14, 1998 | Jan 14, 1998 | Fina Oil & Chemical Company | Slick, T. B. Estate #118 | 6,500 | 42733074 |
| 472203 | Jan 14, 1998 | Jan 14, 1998 | Fina Oil & Chemical Company | Slick, T. B. Estate #122 | 9,850 | 42733075 |
| 472203Amendment | Jan 14, 1998 | Jan 14, 1998 | Fina Oil & Chemical Company | Slick, T. B. Estate #122 | 8,437 | 42733075 |
| 472170 | Jan 13, 1998 | Jan 13, 1998 | Greenbrier Oper. Co. | Guerra, F. B. #1 | 9,730 | 42732690 |
| 472067 | Jan 9, 1998 | Jan 9, 1998 | Edge Petroleum Oper. Co., Inc. | Roos et Al #1 | 1,500 | 42733073 |
| 472058 | Jan 9, 1998 | Jan 9, 1998 | Carrizo Oil & Gas, Inc. | La Brisa L & C Company #1 | 8,370 | 42732886 |
| 471934 | Jan 7, 1998 | Jan 7, 1998 | Tri-C Resources, Inc. | Coates #3 | 6,000 | 42733071 |
| 471934Amendment | Jan 7, 1998 | Jan 7, 1998 | Tri-C Resources, Inc. | Coates #3 | 5,610 | 42733071 |
| 471933 | Jan 7, 1998 | Jan 7, 1998 | Tri-C Resources, Inc. | Coates #4 | 6,000 | 42733072 |
| 471558 | Jan 5, 1998 | Jan 5, 1998 | Samedan Oil Corporation | Martinez -B- #43 | 8,800 | 42732839 |
| 471701 | Dec 29, 1997 | Dec 29, 1997 | Sanchez-O'Brien Oil & Gas Corp. | State of Texas #1 | 15,500 | 42733070 |
| 471618 | Dec 23, 1997 | Dec 23, 1997 | Tri-C Resources, Inc. | Coates #1 | 5,765 | 42733010 |
| 470409 | Dec 23, 1997 | Dec 23, 1997 | Neuhaus, V. F. Properties, Inc. | Sheerin State Unit #4R | 1,200 | 42733062 |
| 471374 | Dec 17, 1997 | Dec 17, 1997 | Enron Oil & Gas Company | Nilo Shallow a GU #1 | 8,700 | 42732737 |
| 471373 | Dec 17, 1997 | Dec 17, 1997 | Enron Oil & Gas Company | Nilo Shallow a GU #4 | 7,750 | 42732758 |
| 471322 | Dec 17, 1997 | Dec 17, 1997 | Oryx Energy Company | Frost #A 1 | 4,700 | 42733069 |
| 471028 | Dec 11, 1997 | Dec 11, 1997 | Fina Oil & Chemical Company | Southwest Farm & Ranch-State #12 | 10,500 | 42733067 |
| 471028Amendment | Dec 11, 1997 | Dec 11, 1997 | Fina Oil & Chemical Company | Southwest Farm & Ranch-State #12 | 9,900 | 42733067 |
| 470972 | Dec 9, 1997 | Dec 9, 1997 | Glenn, Wayne E. & Assoc., Inc. | Slick, T B Estate 541 #1 | 5,700 | 42733068 |
| 470501 | Dec 5, 1997 | Dec 5, 1997 | Exxon Corp. | McGill Bros. #405 | 4,985 | 42705087 |