| 539650 | Dec 17, 2003 | Dec 17, 2003 | Roco Petroleum, Incorporated | Jones | Young #1 X | 5,550 | 25334633 |
| 486696 | Aug 23, 1999 | Aug 23, 1999 | Roco Petroleum, Incorporated | Jones | Hodges #1X | 5,500 | 25334473 |
| 447961 | May 9, 1996 | May 9, 1996 | Roco Petroleum, Incorporated | Shackelford | Walker - Buckler #3B | 4,600 | 41738041 |
| 441882 | Nov 14, 1995 | Nov 14, 1995 | Roco Petroleum, Incorporated | Shackelford | Walker-Buckler #2B | 4,600 | 41737980 |
| 441604 | Nov 6, 1995 | Nov 6, 1995 | Roco Petroleum, Incorporated | Shackelford | Walker-Buckler #1B | 4,600 | 41737977 |
| 439419 | Aug 29, 1995 | Aug 29, 1995 | Roco Petroleum, Incorporated | Jones | Morrow B #2 | 2,600 | 25334278 |
| 435178 | May 5, 1995 | May 5, 1995 | Roco Petroleum, Incorporated | Jones | Roberts "A" #1 | 2,600 | 25300768 |
| 431908 | Jan 30, 1995 | Jan 30, 1995 | Roco Petroleum, Incorporated | Jones | De la Cruz #2 | 5,410 | 25331847 |
| 431908Amendment | Jan 30, 1995 | Jan 30, 1995 | Roco Petroleum, Incorporated | Jones | De la Cruz #2 | 5,410 | 25331847 |
| 425386 | Jul 5, 1994 | Jul 5, 1994 | Roco Petroleum, Incorporated | Taylor | Stockton #2 | 2,700 | 44133692 |
| 414727 | Aug 11, 1993 | Aug 11, 1993 | Roco Petroleum, Incorporated | Jones | Morrow #4 | 2,500 | 25334086 |
| 408974 | Feb 12, 1993 | Feb 12, 1993 | Roco Petroleum, Incorporated | Jones | Morrow #3 | 2,800 | 25334042 |
| 407618 | Dec 23, 1992 | Dec 23, 1992 | Roco Petroleum, Incorporated | Taylor | Stockton, Pat #1 | 2,700 | 44133604 |
| 405825 | Dec 3, 1992 | Dec 3, 1992 | Roco Petroleum, Incorporated | Taylor | Purdom #2 | 2,450 | 44132993 |
| 401341 | Jul 17, 1992 | Jul 17, 1992 | Roco Petroleum, Incorporated | Jones | Morrow #2 | 2,500 | 25301100 |
| 401341Amendment | Jul 17, 1992 | Jul 17, 1992 | Roco Petroleum, Incorporated | Jones | Morrow (Formerly M.E. Rister) #2 | 2,500 | 25301100 |
| 400891 | Jul 9, 1992 | Jul 9, 1992 | Roco Petroleum, Incorporated | Taylor | Rode Ranch #2 | 2,700 | 44133577 |
| 399190 | May 14, 1992 | May 14, 1992 | Roco Petroleum, Incorporated | Taylor | Dowing #1 | 1,500 | 44133560 |
| 398954 | May 11, 1992 | May 11, 1992 | Roco Petroleum, Incorporated | Jones | Morrow #1 | 2,600 | 25333990 |
| 391385 | Oct 15, 1991 | Oct 15, 1991 | Roco Petroleum, Incorporated | Jones | Rister #1 | 5,377 | 25331089 |
| 391384 | Sep 5, 1991 | Sep 5, 1991 | Roco Petroleum, Incorporated | Taylor | Rode Ranch #1 | 2,600 | 44133521 |
| 386257 | Apr 4, 1991 | Apr 4, 1991 | Roco Petroleum, Incorporated | Jones | Roberts #1 | 2,450 | 25333904 |
| 382072 | Dec 13, 1990 | Dec 13, 1990 | Roco Petroleum, Incorporated | Jones | Brunette #1 | 2,600 | 25333884 |
| 381933 | Dec 10, 1990 | Dec 10, 1990 | Roco Petroleum, Incorporated | Jones | Spraberry #1 | 2,500 | 25333883 |
| 367593 | Dec 22, 1989 | Dec 22, 1989 | Roco Petroleum, Incorporated | Jones | Baucum - Spraberry #1 | 2,300 | 25333827 |
| 362648 | Aug 14, 1989 | Aug 14, 1989 | Roco Petroleum, Incorporated | Jones | Winter #2B | 5,500 | 25333804 |
| 337829 | Oct 26, 1987 | Oct 26, 1987 | Roco Petroleum, Incorporated | Taylor | South Oates #1 | 2,999 | 44133273 |
| 335905 | Sep 16, 1987 | Sep 16, 1987 | Roco Petroleum, Incorporated | Jones | Jackson, Bob #1 | 2,500 | 25333644 |
| 331922 | Jun 29, 1987 | Jun 29, 1987 | Roco Petroleum, Incorporated | Jones | Russell #1 | 2,650 | 25333612 |
| 330103 | May 13, 1987 | May 13, 1987 | Roco Petroleum, Incorporated | Jones | Gilreath #1 | 2,600 | 25333606 |
| 324468 | Dec 23, 1986 | Dec 23, 1986 | Roco Petroleum, Incorporated | Jones | Clem #1 | 2,700 | 25333546 |
| 304749 | Jul 30, 1986 | Jul 30, 1986 | Roco Petroleum, Incorporated | Jones | Beaver #1 | 2,500 | 25333494 |
| 304557 | Jul 25, 1986 | Jul 25, 1986 | Roco Petroleum, Incorporated | Jones | Double J #2 | 2,500 | 25333491 |
| 302653 | May 28, 1986 | May 28, 1986 | Roco Petroleum, Incorporated | Jones | Jeffreys #1A | 2,500 | 25333468 |
| 301689 | Apr 29, 1986 | Apr 29, 1986 | Roco Petroleum, Incorporated | Jones | Kendall #1 | 2,500 | 25333453 |
| 300897 | Apr 11, 1986 | Apr 11, 1986 | Roco Petroleum, Incorporated | Jones | Noland #3 | 2,400 | 25333445 |
| 300669 | Apr 4, 1986 | Apr 4, 1986 | Roco Petroleum, Incorporated | Jones | Noland #2 | 2,500 | 25333442 |
| 300350 | Mar 27, 1986 | Mar 27, 1986 | Roco Petroleum, Incorporated | Brown | Indian Mountain #3 | 1,800 | 04934665 |
| 300229 | Mar 25, 1986 | Mar 25, 1986 | Roco Petroleum, Incorporated | Brown | Indian Mountain #2 | 1,800 | 04934660 |
| 294061 | Dec 27, 1985 | Dec 27, 1985 | Roco Petroleum, Incorporated | Jones | Hinds, B. B. #1 | 2,700 | 25333389 |
| 293181 | Dec 16, 1985 | Dec 16, 1985 | Roco Petroleum, Incorporated | Jones | Double J #1 | 2,600 | 25333378 |
| 292600 | Dec 13, 1985 | Dec 13, 1985 | Roco Petroleum, Incorporated | Jones | Matthews #2 | 2,500 | 25333374 |
| 289626 | Nov 8, 1985 | Nov 8, 1985 | Roco Petroleum, Incorporated | Taylor | Slam-O #1 | 4,800 | 44133064 |
| 288179 | Oct 23, 1985 | Oct 23, 1985 | Roco Petroleum, Incorporated | Jones | Knezek #1 | 2,700 | 25333334 |
| 285351 | Sep 20, 1985 | Sep 20, 1985 | Roco Petroleum, Incorporated | Stephens | Kennedy #1 | 4,500 | 42934552 |
| 282802 | Aug 16, 1985 | Aug 16, 1985 | Roco Petroleum, Incorporated | Jones | Matthews #1 | 2,500 | 25333282 |
| 274846 | May 13, 1985 | May 13, 1985 | Roco Petroleum, Incorporated | Jones | Noland #1 | 2,150 | 25333219 |
| 272489 | Apr 17, 1985 | Apr 17, 1985 | Roco Petroleum, Incorporated | Coleman | Reese #1 | 4,200 | 08334429 |
| 265812 | Feb 4, 1985 | Feb 4, 1985 | Roco Petroleum, Incorporated | Coleman | Williams #1 | 4,100 | 08334362 |
| 258608 | Nov 21, 1984 | Nov 21, 1984 | Roco Petroleum, Incorporated | Runnels | South Aldridge #4 | 4,700 | 39933403 |
| 258613 | Nov 21, 1984 | Nov 21, 1984 | Roco Petroleum, Incorporated | Runnels | South Aldridge #4 | 4,700 | 39933403 |
| 258092 | Nov 17, 1984 | Nov 17, 1984 | Roco Petroleum, Incorporated | Coleman | Lanter #1 | 4,484 | 08333397 |
| 252682 | Sep 26, 1984 | Sep 26, 1984 | Roco Petroleum, Incorporated | Runnels | Lanter #4 | 4,800 | 39933347 |
| 252679 | Sep 26, 1984 | Sep 26, 1984 | Roco Petroleum, Incorporated | Runnels | Lanter #4 | 4,800 | 39933347 |
| 248515 | Aug 15, 1984 | Aug 15, 1984 | Roco Petroleum, Incorporated | Brown | Indian Mountain #1 | 2,000 | 04934109 |
| 241529 | Jun 11, 1984 | Jun 11, 1984 | Roco Petroleum, Incorporated | Runnels | South Aldridge #3 | 4,650 | 39933207 |
| 238517 | May 10, 1984 | May 10, 1984 | Roco Petroleum, Incorporated | Runnels | Richey, B. E. #1 | 4,700 | 39933219 |
| 236719 | Apr 25, 1984 | Apr 25, 1984 | Roco Petroleum, Incorporated | Runnels | South Aldridge #3 | 4,700 | 39933207 |
| 229036 | Feb 10, 1984 | Feb 10, 1984 | Roco Petroleum, Incorporated | Coleman | Block Five #1 | 4,700 | 08333969 |
| 222411 | Dec 2, 1983 | Dec 2, 1983 | Roco Petroleum, Incorporated | Runnels | Thompson-Green #1 | 4,850 | 39933072 |
| 222410 | Dec 2, 1983 | Dec 2, 1983 | Roco Petroleum, Incorporated | Runnels | Thompson-Green #1 | 4,850 | 39933072 |
| 219899 | Nov 4, 1983 | Nov 4, 1983 | Roco Petroleum, Incorporated | Haskell | Kainer #1 | 2,999 | 20731496 |
| 215179 | Sep 28, 1983 | Sep 28, 1983 | Roco Petroleum, Incorporated | Runnels | South Aldridge #2 | 4,650 | 39931596 |
| 211534 | Sep 13, 1983 | Sep 13, 1983 | Roco Petroleum, Incorporated | Brown | Bucy "A" #1 A | 2,500 | 04933738 |
| 201805 | Jul 18, 1983 | Jul 18, 1983 | Roco Petroleum, Incorporated | Runnels | South Aldridge #1 | 4,800 | 39932761 |
| 194569 | May 11, 1983 | May 11, 1983 | Roco Petroleum, Incorporated | Comanche | Sartain #1 | 3,041 | 09331100 |
| 194114 | May 10, 1983 | May 10, 1983 | Roco Petroleum, Incorporated | Runnels | South Aldridge #1 | 4,800 | 39932761 |
| 173916 | Oct 8, 1982 | Oct 8, 1982 | Roco Petroleum, Incorporated | Brown | Bucy #1 | 2,500 | 04933309 |
| 170689 | Sep 2, 1982 | Sep 2, 1982 | Roco Petroleum, Incorporated | Taylor | Preslar, C. #3 | 4,750 | 44132248 |
| 166698 | Jul 20, 1982 | Jul 20, 1982 | Roco Petroleum, Incorporated | Taylor | Landers #1 | 4,941 | 44132223 |
| 154467 | Mar 23, 1982 | Mar 23, 1982 | Roco Petroleum, Incorporated | Taylor | Preslar, C. #1 | 5,000 | 44132141 |
| 154873 | Mar 19, 1982 | Mar 19, 1982 | Roco Petroleum, Incorporated | Taylor | Preslar, C. #2 | 5,000 | 44132139 |
| 143031 | Dec 4, 1981 | Dec 4, 1981 | Roco Petroleum, Incorporated | Callahan | Sharpe #1 | 350 | 05933451 |
| 136818 | Oct 16, 1981 | Oct 16, 1981 | Roco Petroleum, Incorporated | Callahan | English, O. J. #1 | 1,000 | 05933365 |