| 484325 | May 6, 1999 | May 6, 1999 | Rio Petroleum, Inc. | Primal-Providence #1 | 8,000 | 35930291 |
| 464457 | Jul 25, 1997 | Jul 25, 1997 | Rio Petroleum, Inc. | Aurora #4 | 7,900 | 35930157 |
| 458547 | Feb 19, 1997 | Feb 19, 1997 | Mesa Operating Co. | Bivins "21" #A224 | 3,500 | 35930290 |
| 452007 | Aug 28, 1996 | Aug 28, 1996 | Hugoton Energy Corporation | Proctor #103 | 7,500 | 35930289 |
| 448581 | Jun 5, 1996 | Jun 5, 1996 | Lyco Energy Corporation | Fulton-Toreador "I" #1 | 5,500 | 35930288 |
| 448581Amendment | Jun 5, 1996 | Jun 5, 1996 | Lyco Energy Corporation | Fulton-Toreador "I" #1 | 5,500 | 35930288 |
| 440208 | Oct 17, 1995 | Oct 17, 1995 | Energas Company | Energas #C003VG | 550 | 35930287 |
| 439015 | Aug 16, 1995 | Aug 16, 1995 | Baytech, Inc. | Alamosa "14' #1 | 8,000 | 35930286 |
| 437192 | Jun 29, 1995 | Jun 29, 1995 | Davis, William H. | Fulton #1 | 9,700 | 35930285 |
| 434548 | Apr 4, 1995 | Apr 4, 1995 | Toreador Exploration & Prod Inc | Fulton #1 | 8,400 | 35930264 |
| 415086 | Aug 19, 1993 | Aug 19, 1993 | Seagull Midcon Inc. | Bivins "D" #19 | 3,200 | 35930284 |
| 402639 | Aug 24, 1992 | Aug 24, 1992 | Rio Petroleum, Inc. | Mansfield "B" #1 | 7,650 | 35930283 |
| 402637 | Aug 24, 1992 | Aug 24, 1992 | Rio Petroleum, Inc. | Mansfield "CS" #7 | 6,700 | 35930282 |
| 395265 | Dec 19, 1991 | Dec 19, 1991 | Union Pacific Resources Company | Mansfield, Jackson #1 | 4,000 | 35930281 |
| 395265Amendment | Dec 19, 1991 | Dec 19, 1991 | Union Pacific Resources Company | Mansfield, Jackson #1 | 4,000 | 35930281 |
| 390621 | Aug 7, 1991 | Aug 7, 1991 | Rio Petroleum, Inc. | Aurora #16 | 7,500 | 35930280 |
| 390621Amendment | Aug 7, 1991 | Aug 7, 1991 | Rio Petroleum, Inc. | Aurora #16 | 7,500 | 35930280 |
| 386815 | May 9, 1991 | May 9, 1991 | Rio Petroleum, Inc. | Taylor "B" #2 | 7,600 | 35930279 |
| 384485 | Feb 20, 1991 | Feb 20, 1991 | Harken Exploration Company | Holt #1 | 7,800 | 35930278 |
| 374132 | Jun 5, 1990 | Jun 5, 1990 | Merex Resources, Inc. | George #1 | 7,300 | 35930277 |
| 355067 | Jan 12, 1989 | Jan 12, 1989 | Great Western Drlg. Co. | Binford, Nancy #101 | 6,000 | 35930276 |
| 350128 | Aug 17, 1988 | Aug 17, 1988 | Team Exploration | Binford #1 | 7,100 | 35930275 |
| 350128Amendment | Aug 17, 1988 | Aug 17, 1988 | Great Western Drlg. Co. | Binford #1 | 7,100 | 35930275 |
| 347393 | Jun 7, 1988 | Jun 7, 1988 | I.S.E.M. | Mansfield Seismic #2 | 1,400 | 35930274 |
| 347393Amendment | Jun 7, 1988 | Jun 7, 1988 | I.S.E.M. | Mansfield Seismic No. 2 #2 | 1,300 | 35930274 |
| 347393Amendment | Jun 7, 1988 | Jun 7, 1988 | I.S.E.M. | Mansfield Seismic #2 | 1,300 | 35930274 |
| 343173 | Feb 25, 1988 | Feb 25, 1988 | Baker & Taylor Drilling Co. | Quien Sabe Ranch "F" #1 | 8,300 | 35930273 |
| 342117 | Feb 2, 1988 | Feb 2, 1988 | Baker & Taylor Drilling Co. | Quien Sabe Ranch "E" #1 | 7,500 | 35930272 |
| 330316 | May 14, 1987 | May 14, 1987 | EP Operating Company | Green, Tom "40" #1X | 7,600 | 35930271 |
| 329383 | Apr 30, 1987 | Apr 30, 1987 | EP Operating Company | Green, Tom "40" #1 | 7,600 | 35930270 |
| 327788 | Mar 18, 1987 | Mar 18, 1987 | Celeron Oil & Gas Co. | Bivins #1014 | 9,500 | 35930269 |
| 324277 | Dec 12, 1986 | Dec 12, 1986 | Baker & Taylor Drilling Co. | Quien Sabe Ranch "C" #1 | 8,400 | 35930268 |
| 322978 | Nov 17, 1986 | Nov 17, 1986 | Baker & Taylor Drilling Co. | Quien Sabe Ranch "D" #1 | 7,800 | 35930267 |
| 303667 | Jun 30, 1986 | Jun 30, 1986 | Whitmar Exploration Company | Dewees Ranch #1018 | 7,000 | 35930266 |
| 300940 | Apr 9, 1986 | Apr 9, 1986 | Celeron Oil & Gas Co. | Bivins #102 | 11,500 | 35930265 |
| 287275 | Oct 14, 1985 | Oct 14, 1985 | Baker & Taylor Drilling Co. | Quien Sabe Ranch "B" #1 | 8,300 | 35930264 |
| 284228 | Sep 5, 1985 | Sep 5, 1985 | Baker & Taylor Drilling Co. | Quien Sabe Ranch "A" #5 | 7,700 | 35930263 |
| 282573 | Aug 15, 1985 | Aug 15, 1985 | Baker & Taylor Drilling Co. | Quien Sabe Ranch "A" #4 | 7,700 | 35930262 |
| 280930 | Jul 22, 1985 | Jul 22, 1985 | Baker & Taylor Drilling Co. | Quien Sabe Ranch "A" #3 | 7,800 | 35930261 |
| 278666 | Jun 21, 1985 | Jun 21, 1985 | Baker & Taylor Drilling Co. | Quien Sabe Ranch "A" #2 | 7,900 | 35930260 |
| 275321 | May 16, 1985 | May 16, 1985 | Baker & Taylor Drilling Co. | Quien Sabe Ranch "A" #1 | 8,100 | 35900004 |
| 271144 | Apr 1, 1985 | Apr 1, 1985 | Celeron Oil & Gas Co. | Bivins #102 | 11,500 | 35930265 |
| 260625 | Dec 11, 1984 | Dec 11, 1984 | Cambridge & Nail | Bravo #1 | 8,100 | 35930258 |
| 255214 | Oct 22, 1984 | Oct 22, 1984 | Getty Oil Co. | Green, Tom #1 | 8,000 | 35930257 |
| 249069 | Aug 21, 1984 | Aug 21, 1984 | Baker & Taylor Drilling Co. | Rafter 'O' Ranch "50" #1 | 7,200 | 35930256 |
| 245392 | Jul 18, 1984 | Jul 18, 1984 | Baker & Taylor Drilling Co. | Rafter 'O' Ranch "28" #1 | 7,500 | 35930255 |
| 245029 | Jul 13, 1984 | Jul 13, 1984 | Baker & Taylor Drilling Co. | Fulton Ranch #1 | 7,700 | 35930254 |
| 243359 | Jun 27, 1984 | Jun 27, 1984 | Baker & Taylor Drilling Co. | Rafter 'O' Ranch #1035 | 7,500 | 35930253 |
| 231807 | Mar 8, 1984 | Mar 8, 1984 | Baker & Taylor Drilling Co. | Morris, R. L. #1047 | 8,300 | 35930252 |
| 228041 | Jan 31, 1984 | Jan 31, 1984 | Baker & Taylor Drilling Co. | Gray Ranch #1 | 7,200 | 35930251 |
| 223032 | Dec 8, 1983 | Dec 8, 1983 | Baker & Taylor Drilling Co. | Roger #1 | 11,000 | 35930250 |
| 221920 | Nov 28, 1983 | Nov 28, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #12 | 8,700 | 35930249 |
| 221915 | Nov 28, 1983 | Nov 28, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #13 | 8,700 | 35930246 |
| 221916 | Nov 28, 1983 | Nov 28, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #14 | 8,700 | 35930247 |
| 221918 | Nov 28, 1983 | Nov 28, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #11 | 8,700 | 35930248 |
| 221833 | Nov 23, 1983 | Nov 23, 1983 | Baker & Taylor Drilling Co. | David #2 | 8,800 | 35930240 |
| 221836 | Nov 23, 1983 | Nov 23, 1983 | Baker & Taylor Drilling Co. | Terry #3 | 8,200 | 35930241 |
| 221829 | Nov 23, 1983 | Nov 23, 1983 | Baker & Taylor Drilling Co. | Terry #2 | 8,200 | 35930238 |
| 221840 | Nov 23, 1983 | Nov 23, 1983 | Baker & Taylor Drilling Co. | Foster #1 | 7,500 | 35930244 |
| 221838 | Nov 23, 1983 | Nov 23, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #10 | 8,500 | 35930242 |
| 221845 | Nov 23, 1983 | Nov 23, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #9 | 8,500 | 35930245 |
| 221839 | Nov 23, 1983 | Nov 23, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #8 | 9,000 | 35930243 |
| 221832 | Nov 23, 1983 | Nov 23, 1983 | Baker & Taylor Drilling Co. | East Billy's Creek #6 | 10,250 | 35930239 |
| 221827 | Nov 23, 1983 | Nov 23, 1983 | Baker & Taylor Drilling Co. | East Billy's Creek #5 | 10,500 | 35930237 |
| 221354 | Nov 21, 1983 | Nov 21, 1983 | Baker & Taylor Drilling Co. | Bob #2 | 8,200 | 35930236 |
| 220964 | Nov 18, 1983 | Nov 18, 1983 | Baker & Taylor Drilling Co. | York #1 | 7,500 | 35930235 |
| 220357 | Nov 9, 1983 | Nov 9, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #7 | 9,000 | 35930234 |
| 220230 | Nov 8, 1983 | Nov 8, 1983 | Baker & Taylor Drilling Co. | David #1 | 8,800 | 35930233 |
| 219949 | Nov 4, 1983 | Nov 4, 1983 | Baker & Taylor Drilling Co. | Terry #1 | 8,200 | 35930232 |
| 218396 | Oct 24, 1983 | Oct 24, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #6 | 8,300 | 35930231 |
| 217839 | Oct 19, 1983 | Oct 19, 1983 | Baker & Taylor Drilling Co. | East Billy's Creek #4 | 10,500 | 35930230 |
| 217561 | Oct 17, 1983 | Oct 17, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #5 | 8,300 | 35930229 |
| 217556 | Oct 17, 1983 | Oct 17, 1983 | Baker & Taylor Drilling Co. | East Billy's Creek #3 | 10,000 | 35930228 |
| 214013 | Sep 22, 1983 | Sep 22, 1983 | Baker & Taylor Drilling Co. | Ruth #1 | 8,267 | 35930227 |
| 213859 | Sep 22, 1983 | Sep 22, 1983 | Baker & Taylor Drilling Co. | Five Spot #1 | 7,700 | 35930224 |
| 213861 | Sep 22, 1983 | Sep 22, 1983 | Baker & Taylor Drilling Co. | Sharan #1 | 7,700 | 35930225 |
| 214011 | Sep 22, 1983 | Sep 22, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #4 | 8,300 | 35930226 |
| 213650 | Sep 21, 1983 | Sep 21, 1983 | Baker & Taylor Drilling Co. | Bob #1 | 8,250 | 35930223 |
| 213644 | Sep 21, 1983 | Sep 21, 1983 | Baker & Taylor Drilling Co. | Corinne #1 | 8,000 | 35930222 |
| 210367 | Sep 7, 1983 | Sep 7, 1983 | Baker & Taylor Drilling Co. | Freda #1 | 9,000 | 35930221 |
| 210366 | Sep 7, 1983 | Sep 7, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #3 | 8,300 | 35930220 |
| 207647 | Aug 25, 1983 | Aug 25, 1983 | Baker & Taylor Drilling Co. | East Billy's Creek #2 | 10,500 | 35930218 |
| 208756 | Aug 11, 1983 | Aug 11, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #2 | 8,500 | 35930214 |
| 205241 | Aug 11, 1983 | Aug 11, 1983 | Baker & Taylor Drilling Co. | Who's Mistake #3 | 7,400 | 35930215 |
| 205242 | Aug 11, 1983 | Aug 11, 1983 | Baker & Taylor Drilling Co. | Sagebrush #1 | 8,000 | 35930216 |
| 205545 | Aug 5, 1983 | Aug 5, 1983 | Baker & Taylor Drilling Co. | Fawn #1 | 7,400 | 35930217 |
| 202105 | Jul 19, 1983 | Jul 19, 1983 | Baker & Taylor Drilling Co. | Nettle #1 | 9,000 | 35930213 |
| 202104 | Jul 14, 1983 | Jul 14, 1983 | Baker & Taylor Drilling Co. | Billy's Creek #1 | 9,000 | 35930212 |
| 199441 | Jun 24, 1983 | Jun 24, 1983 | Baker & Taylor Drilling Co. | Lobo #1 | 7,575 | 35930211 |
| 196640 | May 27, 1983 | May 27, 1983 | Baker & Taylor Drilling Co. | Who's Mistake #2 | 7,400 | 35930210 |
| 195594 | May 18, 1983 | May 18, 1983 | Baker & Taylor Drilling Co. | East Billy's Creek #1 | 10,500 | 35930209 |
| 191514 | Apr 14, 1983 | Apr 14, 1983 | Baker & Taylor Drilling Co. | Who's Mistake #1 | 7,371 | 35900024 |
| 191414 | Apr 13, 1983 | Apr 13, 1983 | MBB Operators Inc. | Glasscock #1A | 6,787 | 35930208 |
| 190584 | Apr 5, 1983 | Apr 5, 1983 | Baker & Taylor Drilling Co. | Brakes, Cedar #1 | 7,850 | 35930206 |
| 189618 | Mar 25, 1983 | Mar 25, 1983 | Baker & Taylor Drilling Co. | Connie #1 | 7,800 | 35930205 |
| 191354 | Mar 16, 1983 | Mar 16, 1983 | MBB Operators Inc. | Glasscock #1 | 1,385 | 35930207 |
| 187838 | Mar 8, 1983 | Mar 8, 1983 | Baker & Taylor Drilling Co. | Amy #2 | 7,500 | 35930204 |
| 187205 | Feb 28, 1983 | Feb 28, 1983 | Baker & Taylor Drilling Co. | Antelope #1 | 6,950 | 35930183 |
| 187046 | Feb 24, 1983 | Feb 24, 1983 | MBB Operators Inc. | Glasscock #1 | 4,309 | 35930202 |
| 187016 | Jan 28, 1983 | Jan 28, 1983 | Baker & Taylor Drilling Co. | Cindy #1 | 6,787 | 35930201 |