| Arrowhead Grayburg Unit #410C30-025-41300 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | CanceledOil | 3,850 | Jul 31, 2013 | 0 | 0 |
| Arrowhead Grayburg Unit #414C30-025-41301 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | CanceledOil | 3,860 | Jul 31, 2013 | 0 | 0 |
| Arrowhead Grayburg Unit #404P30-025-39195 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | CanceledOil | 4,100 | Oct 9, 2008 | 0 | 0 |
| Arrowhead Grayburg Unit #405G30-025-39196 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | CanceledOil | 4,100 | Oct 9, 2008 | 0 | 0 |
| New Mexico M State #05730-025-38207 | Contango Resources, LLC only | LeaArrowhead; Grayburg | PluggedOil | 4,316 | Dec 8, 2006 | 0 | 0 |
| Arrowhead Grayburg Unit #32830-025-37282 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 5,208 | Jun 10, 2005 | 755 | 772 |
| Arrowhead Grayburg Unit #36030-025-37283 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | Temporarily abandonedOil | 5,208 | Jun 10, 2005 | 0 | 0 |
| Arrowhead Grayburg Unit #39130-025-37284 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 4,410 | Jun 10, 2005 | 0 | 0 |
| Arrowhead Grayburg Unit #39830-025-37285 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 5,229 | Jun 10, 2005 | 940 | 601 |
| Arrowhead Grayburg Unit #40830-025-37286 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 4,594 | Jun 10, 2005 | 362 | 10,185 |
| New Mexico G-21 State #03630-025-36577 | North Fork Operating, LP only | LeaArrowhead; Grayburg | ActiveOil | 4,050 | Feb 24, 2004 | 566 | 11,605 |
| Arrowhead Grayburg Unit #337Y30-025-35543 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | PluggedOil | 3,940 | May 10, 2001 | 0 | 0 |
| Arrowhead Grayburg Unit #35930-025-35423 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,910 | Feb 26, 2001 | 0 | 0 |
| Arrowhead Grayburg Unit #32430-025-35419 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | Temporarily abandonedOil | 3,888 | Feb 23, 2001 | 0 | 0 |
| Arrowhead Grayburg Unit #35130-025-34927 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,885 | Feb 7, 2000 | 886 | 2,305 |
| Arrowhead Grayburg Unit #32930-025-34842 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,885 | Jan 13, 2000 | 0 | 0 |
| Arrowhead Grayburg Unit #33030-025-34843 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,855 | Jan 13, 2000 | 2,343 | 1,120 |
| Arrowhead Grayburg Unit #34330-025-34844 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,905 | Jan 13, 2000 | 1,089 | 2,578 |
| Arrowhead Grayburg Unit #35230-025-34823 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | Temporarily abandonedOil | 3,895 | Jan 5, 2000 | 0 | 0 |
| Arrowhead Grayburg Unit #34430-025-34665 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | PluggedOil | 3,809 | Jul 26, 1999 | 0 | 0 |
| Arrowhead Grayburg Unit #33530-025-34636 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,889 | Jun 9, 1999 | 1,952 | 2,237 |
| Arrowhead Grayburg Unit #34230-025-34637 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,948 | Jun 9, 1999 | 1,276 | 1,552 |
| Arrowhead Grayburg Unit #33630-025-34297 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,879 | Feb 12, 1998 | 430 | 203 |
| Arrowhead Grayburg Unit #36930-025-34298 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | Temporarily abandonedOil | 3,831 | Feb 12, 1998 | 0 | 0 |
| Arrowhead Grayburg Unit #39030-025-34299 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,800 | Feb 12, 1998 | 961 | 1,156 |
| Arrowhead Grayburg Unit #138Y30-025-32827 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 4,068 | Jan 18, 1995 | 793 | 3,472 |
| Eumont 17 State #00130-025-32820 | Mewbourne Oil Co only | LeaEumont; Yates-7 Rvrs-Queen (Gas) | ActiveGas | 3,890 | Jan 11, 1995 | 0 | 4,394 |
| Arrowhead Grayburg Unit #16130-025-24528 | XTO Energy, Inc only | LeaArrowhead; Grayburg | PluggedOil | 6,860 | May 1, 1993 | 0 | 0 |
| Arrowhead Grayburg Unit #20030-025-31752 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | Temporarily abandonedOil | 3,885 | Feb 1, 1993 | 0 | 0 |
| Arrowhead Grayburg Unit #22930-025-31740 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveInjection | 3,815 | Jan 1, 1993 | 0 | 0 |
| Arrowhead Grayburg Unit #19030-025-31724 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | PluggedOil | 4,045 | Dec 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #20930-025-26534 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | PluggedOil | 6,800 | Nov 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #17030-025-31435 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,950 | Nov 1, 1992 | 607 | 1,801 |
| Arrowhead Grayburg Unit #22630-025-31674 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | PluggedOil | 3,874 | Nov 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #18630-025-31722 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,868 | Nov 1, 1992 | 415 | 494 |
| Arrowhead Grayburg Unit #18830-025-31723 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | PluggedOil | 4,959 | Nov 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #17130-025-31734 | XTO Energy, Inc only | LeaArrowhead; Grayburg | PluggedInjection | 3,995 | Nov 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #21530-025-31751 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveOil | 3,886 | Oct 14, 1992 | 131 | 158 |
| Arrowhead Grayburg Unit #23530-025-31390 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveInjection | 3,881 | Oct 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #22030-025-31437 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveInjection | 3,870 | Oct 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #23930-025-31710 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | PluggedOil | 3,938 | Oct 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #12830-025-24105 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveInjection | 6,791 | Sep 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #21030-025-26391 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveInjection | 6,800 | Sep 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #20530-025-26659 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveInjection | 6,804 | Sep 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #22730-025-31245 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveInjection | 3,855 | Sep 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #21830-025-31301 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | PluggedInjection | 3,880 | Sep 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #11030-025-31306 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | PluggedInjection | 4,235 | Sep 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #24230-025-31329 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveInjection | 3,980 | Sep 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #21230-025-31388 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveInjection | 3,805 | Sep 1, 1992 | 0 | 0 |
| Arrowhead Grayburg Unit #14830-025-31393 | Empire New Mexico LLC only | LeaArrowhead; Grayburg | ActiveInjection | 3,915 | Sep 1, 1992 | 0 | 0 |