| Panther #242-157-33286 | Delfin Operating LLC | Fort Bend, TXBlue Ridge | ActiveOil | 3,857 | Oct 24, 2023 | — | — |
| Christopher #142-155-30814 | Delfin Operating LLC | Foard, TXHanagan (Des Moines) | PluggedOil | 8,500 | Feb 26, 2020 | — | — |
| Butts #1A42-237-40510 | Delfin Operating LLC | Jack, TXNewark East (Barnett Shale) | PluggedOil | 6,700 | Jul 17, 2018 | — | — |
| McMillan a #142-237-40491 | Delfin Operating LLC | Jack, TXBowie SW. (Marble Falls) | Shut inOil | 6,895 | Nov 29, 2017 | — | — |
| Morton #142-237-39943 | Delfin Operating LLC | Jack, TXDunes (Marble Falls) | PluggedOil | 7,300 | Sep 13, 2017 | — | — |
| H J Ballard #142-241-30895 | Delfin Operating LLC | Jasper, TXAdams Ranch (Yegua DY) | ActiveGas | 9,402 | Jul 6, 2017 | — | — |
| L.E. Catlin #6A42-237-40481 | Delfin Operating LLC | Jack, TXKRS (Marble Falls) | Shut inOil | 6,815 | Jun 30, 2017 | — | — |
| Texla Mill #342-361-30980 | Delfin Operating LLC | Orange, TXAdams Ranch (Nodosaria 1-Str.) | Temporarily abandonedGas | 7,490 | Apr 24, 2017 | — | — |
| L.E. Catlin #5A42-237-40465 | Delfin Operating LLC | Jack, TXCatlin (Atoka Congl.) | Shut inOil | 6,900 | Mar 14, 2017 | — | — |
| Dinwiddie #142-237-39988 | Delfin Operating LLC | Jack, TXCrafton West (Caddo Oil) | PluggedOil | 7,000 | Dec 29, 2016 | — | — |
| Hull #142-237-39913 | Delfin Operating LLC | Jack, TXH.F.L. (Conglomerate 5400) | ActiveGas | 6,300 | Aug 29, 2016 | — | — |
| Miles #1ST42-241-30877 | Delfin Operating LLC | Jasper, TXAdams Ranch (Yegua DY) | ActiveGas | 9,700 | Feb 28, 2016 | — | — |
| Corry B #142-237-40415 | Delfin Operating LLC | Jack, TXBowie SW. (Marble Falls) | ActiveOil | 6,100 | Jan 15, 2016 | — | — |
| Koin #142-237-40411 | Delfin Operating LLC | Jack, TXDimock (Ellenburger) | ActiveOil | 6,800 | Dec 18, 2015 | — | — |
| Corry #142-237-39971 | Delfin Operating LLC | Jack, TXBowie SW. (Marble Falls) | ActiveOil | 6,500 | Dec 3, 2014 | — | — |
| Piney Woods #242-241-30872 | Delfin Operating LLC | Jasper, TXAdams Ranch (Nodosaria 1-Str.) | ActiveGas | 7,605 | Oct 31, 2014 | — | — |
| Piney Woods #142-241-30871 | Delfin Operating LLC | Jasper, TXAdams Ranch (Nodosaria 1-Str.) | ActiveGas | 7,267 | Oct 21, 2014 | — | — |
| Hull #242-237-40088 | Delfin Operating LLC | Jack, TXKRS (Marble Falls) | ActiveOil | 6,400 | Apr 29, 2014 | — | — |
| Fowler #1HHZ42-197-31679 | Delfin Operating LLC | Hardeman, TXWayward (Holmes) | PluggedOil | 8,300 | Jun 28, 2013 | — | — |
| Corry G #142-237-37378 | Delfin Operating LLC | Jack, TXJack County Regular | ActiveOil | 5,750 | Mar 15, 2005 | — | — |
| Goode S. a-151 #1HZ42-241-30646 | Delfin Operating LLC | Jasper, TXBrookeland (Austin Chalk 8800) | ActiveGas | 17,075 | May 5, 1999 | — | — |
| East Gilchrist a-153 Unit #1HZ42-241-30656 | Delfin Operating LLC | Jasper, TXBrookeland (Austin Chalk 8800) | ActiveOil | 12,468 | Nov 12, 1998 | — | — |
| Donner-Brown Unit a-1007 #1HZ42-241-30655 | Delfin Operating LLC | Jasper, TXBrookeland (Austin Chalk 8800) | ActiveOil | 11,554 | Oct 20, 1998 | — | — |
| Ellis Unit a-521 #1HZ42-241-30653 | Delfin Operating LLC | Jasper, TXBrookeland (Austin Chalk 8800) | ActiveGas | 12,065 | Jun 29, 1998 | — | — |
| Lewis Unit a-340 #1HZ42-241-30651 | Delfin Operating LLC | Jasper, TXBrookeland (Austin Chalk 8800) | ActiveOil | 12,475 | Mar 2, 1998 | — | — |
| Borden Dinwiddie a #142-237-38323 | Delfin Operating LLC | Jack, TXCrafton West (Caddo Lime) | ActiveGas | 5,850 | Oct 17, 1997 | — | — |
| Dinwiddie Borden #142-237-38319 | Delfin Operating LLC | Jack, TXCrafton West (Caddo Lime) | Temporarily abandonedGas | 5,957 | Sep 25, 1997 | — | — |
| Corry C #142-237-37278 | Delfin Operating LLC | Jack, TXShahan (Congl.) | Temporarily abandonedGas | 5,810 | Dec 22, 1986 | — | — |
| Catlin L. E. #342-237-02286 | Delfin Operating LLC | Jack, TXCatlin (Strawn) | Shut inOil | 4,844 | Jan 31, 1986 | — | — |
| Moser Jeffrey #142-497-32014 | Delfin Operating LLC | Wise, TXLayne Browning (Caddo) | Temporarily abandonedGas | 5,903 | Mar 30, 1984 | — | — |
| Borden Z.H. C #442-237-34923 | Delfin Operating LLC | Jack, TXDunes (Congl) | Temporarily abandonedGas | 6,100 | Dec 23, 1982 | — | — |
| Price #142-237-33793 | Delfin Operating LLC | Jack, TXCatlin (Caddo Conglomerate) | ActiveGas | 6,189 | Jun 23, 1981 | — | — |
| Lewis #142-237-32988 | Delfin Operating LLC | Jack, TXCatlin (Caddo Conglomerate) | ActiveGas | 6,216 | Jan 10, 1980 | — | — |
| Long W. O. #142-237-32868 | Delfin Operating LLC | Jack, TXCatlin (Caddo Conglomerate) | ActiveGas | 6,208 | Oct 29, 1979 | — | — |
| Jones Rosa #142-237-02279 | Delfin Operating LLC | Jack, TXCatlin (Caddo Conglomerate) | Temporarily abandonedGas | 5,839 | — | — | — |
| Catlin L. E. #242-237-02287 | Delfin Operating LLC | Jack, TXCatlin (Caddo Conglomerate) | ActiveGas | 5,904 | — | — | — |
| Catlin L. E. #142-237-02288 | Delfin Operating LLC | Jack, TXCatlin (Caddo Conglomerate) | ActiveGas | 5,822 | — | — | — |
| Borden S. F. Estate #1 T42-237-02495 | Delfin Operating LLC | Jack, TXGilley (Caddo Lime) | ActiveOil | 5,902 | — | — | — |
| Swiney J. L. #142-237-02647 | Delfin Operating LLC | Jack, TXBoonsville (Bend Congl. Gas) | ActiveGas | 5,537 | — | — | — |