| Tomcat 20 Federal #00730-025-37296 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,650 | Apr 28, 2005 | 3 | 12 |
| Tomcat 20 Federal #00630-025-35525 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,950 | Feb 16, 2001 | 2,089 | 786 |
| Tomcat 16 State #01330-025-35411 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 7,600 | Feb 15, 2001 | 2,894 | 4,270 |
| Tomcat 21 Federal #00830-025-35526 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,675 | Feb 14, 2001 | 0 | 73 |
| Tomcat 20 Federal #00430-025-35233 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,600 | Sep 18, 2000 | 386 | 197 |
| Tomcat 20 Federal #00530-025-35234 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,655 | Sep 18, 2000 | 2 | 15 |
| Tomcat 20 Federal #00330-025-35145 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,600 | Aug 8, 2000 | 1,274 | 1,409 |
| Tomcat 17 Federal #00530-025-35069 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,658 | May 26, 2000 | 711 | 2,265 |
| Tomcat 17 Federal #00630-025-35070 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,900 | May 26, 2000 | 2 | 7 |
| Tomcat 16 State #01030-025-35045 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,945 | May 13, 2000 | 3,183 | 2,104 |
| Tomcat 16 State #00630-025-34949 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,910 | Feb 28, 2000 | 669 | 178 |
| Tomcat 16 State #00830-025-34924 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,925 | Feb 14, 2000 | 6 | 0 |
| Tomcat 16 State #00730-025-34923 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,927 | Feb 11, 2000 | 5,909 | 372 |
| Tomcat 20 Federal #00230-025-34926 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,850 | Jan 3, 2000 | 752 | 779 |
| Tomcat 16 State #00330-025-34809 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,899 | Dec 23, 1999 | 3,759 | 3,982 |
| Tomcat 16 State #00430-025-34810 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,935 | Dec 23, 1999 | 1,347 | 296 |
| Tomcat 17 Federal #00430-025-34812 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,876 | Dec 20, 1999 | 2,267 | 1,673 |
| Tomcat 20 Federal #00130-025-34693 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,850 | Sep 1, 1999 | 1,730 | 3,980 |
| Tomcat 17 Federal #00130-025-34690 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 9,100 | Aug 30, 1999 | 1,191 | 549 |
| Tomcat 17 Federal #00230-025-34691 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,850 | Aug 30, 1999 | 1,905 | 2,137 |
| Tomcat 17 Federal #00330-025-34692 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 8,874 | Aug 30, 1999 | 909 | 526 |
| Tomcat 16 State #00230-025-34306 | Harvard Petroleum Company, LLC | LeaDiamondtail; Delaware, Southwest | ActiveOil | 9,014 | Mar 18, 1999 | 1,253 | 687 |