| 848183 | Jan 2, 2019 | Jan 2, 2019 | Basic Energy Services, L.P. | Guitar #5D | 12,000 | 22739944 |
| 847811 | Dec 31, 2018 | Dec 31, 2018 | Grenadier Energy Partners Ii,llc | Oldham Trust #3875LSH | 14,000 | 22739921 |
| 847716Amendment | Dec 31, 2018 | Dec 31, 2018 | Diamondback E&P LLC | Mayo SN 48-37 06 #506LSH | 9,500 | 22739913 |
| 847711Amendment | Dec 31, 2018 | Dec 31, 2018 | Diamondback E&P LLC | Mayo SN 48-37 07 #507LSH | 9,500 | 22739910 |
| 847446Amendment | Dec 31, 2018 | Dec 31, 2018 | Surge Operating, LLC | Stanley Unit 48-01 #2SHH | 9,000 | 22739892 |
| 846921Amendment | Dec 31, 2018 | Dec 31, 2018 | Crownquest Operating, LLC | Sycamore #1AAH | 10,000 | 22739866 |
| 846244Amendment | Dec 31, 2018 | Dec 31, 2018 | Parsley Energy Operations, LLC | Waymore 18-19-F #4211HH | 8,008 | 22739842 |
| 846243Amendment | Dec 31, 2018 | Dec 31, 2018 | Parsley Energy Operations, LLC | Waymore 18-19-H #4215HH | 7,968 | 22739841 |
| 845466Amendment | Dec 31, 2018 | Dec 31, 2018 | Diamondback E&P LLC | Nichols East Unit #2WAH | 9,150 | 22739804 |
| 845466Amendment | Dec 31, 2018 | Dec 31, 2018 | Diamondback E&P LLC | Nichols East Unit #2WAH | 9,150 | 22739804 |
| 845464Amendment | Dec 31, 2018 | Dec 31, 2018 | Diamondback E&P LLC | Nichols East Unit #2LSH | 8,850 | 22739802 |
| 845464Amendment | Dec 31, 2018 | Dec 31, 2018 | Diamondback E&P LLC | Nichols East Unit #2LSH | 8,850 | 22739802 |
| 845463Amendment | Dec 31, 2018 | Dec 31, 2018 | Diamondback E&P LLC | Nichols East Unit #1WAH | 9,150 | 22739801 |
| 844661 | Dec 31, 2018 | Dec 31, 2018 | Diamondback E&P LLC | Asro Jr. Unit #4LSH | 8,840 | 22739773 |
| 844067 | Dec 31, 2018 | Dec 31, 2018 | Crownquest Operating, LLC | Les Paul E #5HAH | 10,000 | 22739755 |
| 844065 | Dec 31, 2018 | Dec 31, 2018 | Crownquest Operating, LLC | Les Paul E #6AAH | 10,000 | 22739752 |
| 844059 | Dec 31, 2018 | Dec 31, 2018 | Crownquest Operating, LLC | Les Paul F #8HBH | 10,000 | 22739754 |
| 844058 | Dec 31, 2018 | Dec 31, 2018 | Crownquest Operating, LLC | Les Paul F #7HAH | 10,000 | 22739753 |
| 844013 | Dec 31, 2018 | Dec 31, 2018 | Crownquest Operating, LLC | Les Paul E #4AAH | 10,000 | 22739751 |
| 843989 | Dec 31, 2018 | Dec 31, 2018 | Crownquest Operating, LLC | Les Paul F #9AAH | 10,000 | 22739748 |
| 843710 | Dec 31, 2018 | Dec 31, 2018 | Legacy Reserves Operating LP | Beach D #4SHH | 8,000 | 22739743 |
| 843708 | Dec 31, 2018 | Dec 31, 2018 | Legacy Reserves Operating LP | Beach C #3SHH | 8,000 | 22739742 |
| 843705 | Dec 31, 2018 | Dec 31, 2018 | Legacy Reserves Operating LP | Beach B #2SHH | 8,000 | 22739741 |
| 843696 | Dec 31, 2018 | Dec 31, 2018 | Legacy Reserves Operating LP | Beach A #1WHH | 8,500 | 22739740 |
| 843384Amendment | Dec 31, 2018 | Dec 31, 2018 | Crownquest Operating, LLC | Les Paul #3HBH | 10,000 | 22739737 |
| 843383 | Dec 31, 2018 | Dec 31, 2018 | Crownquest Operating, LLC | Les Paul #2HAH | 10,000 | 22739736 |
| 843380 | Dec 31, 2018 | Dec 31, 2018 | Crownquest Operating, LLC | Les Paul #1AAH | 10,000 | 22739735 |
| 843192 | Dec 31, 2018 | Dec 31, 2018 | Encana Oil & Gas(usa) Inc. | Ward 17C #4HKH | 8,900 | 22739726 |
| 843192Amendment | Dec 31, 2018 | Dec 31, 2018 | Ovintiv USA Inc. | Ward 17C #4HKH | 8,900 | 22739726 |
| 843151 | Dec 31, 2018 | Dec 31, 2018 | Encana Oil & Gas(usa) Inc. | Ward 17BK #3HJH | 8,900 | 22739720 |
| 843151Amendment | Dec 31, 2018 | Dec 31, 2018 | Ovintiv USA Inc. | Ward 17BK #3HJH | 8,900 | 22739720 |
| 843150Amendment | Dec 31, 2018 | Dec 31, 2018 | Encana Oil & Gas(usa) Inc. | Ward 17BK #2HKH | 8,900 | 22739719 |
| 841182 | Dec 31, 2018 | Dec 31, 2018 | Birch Operations, Inc. | Andre the Giant #1 | 12,000 | 22739671 |
| 840957Amendment | Dec 31, 2018 | Dec 31, 2018 | Birch Operations, Inc. | Mike the Tiger 18-7 F #7WAH | 8,800 | 22739659 |
| 840649 | Dec 31, 2018 | Dec 31, 2018 | SM Energy Company | Waco Kid A #1944WAH | 10,500 | 22739639 |
| 840649Amendment | Dec 31, 2018 | Dec 31, 2018 | SM Energy Company | Waco Kid A #1944WAH | 10,500 | 22739639 |
| 839671Amendment | Dec 31, 2018 | Dec 31, 2018 | Sabalo Operating, LLC | Thumper 14-23 B #2SHH | 9,000 | 22739614 |
| 839671Amendment | Dec 31, 2018 | Dec 31, 2018 | Laredo Petroleum, Inc. | Thumper 14-23 B #2SHH | 9,000 | 22739614 |
| 839499 | Dec 31, 2018 | Dec 31, 2018 | Sabalo Operating, LLC | Thumper 14-23 #3AHH | 9,000 | 22739605 |
| 839497Amendment | Dec 31, 2018 | Dec 31, 2018 | Sabalo Operating, LLC | Thumper 14-23 B #2AHH | 9,000 | 22739604 |
| 839497Amendment | Dec 31, 2018 | Dec 31, 2018 | Laredo Petroleum, Inc. | Thumper 14-23 B #2AHH | 9,000 | 22739604 |
| 839099 | Dec 31, 2018 | Dec 31, 2018 | Grenadier Energy Partners Ii,llc | Leech 32-41 Unit A #1LSH | 15,000 | 22739589 |
| 839099Amendment | Dec 31, 2018 | Dec 31, 2018 | Laredo Petroleum, Inc. | Leech 32-41 Unit A #1LSH | 6,700 | 22739589 |
| 839099Amendment | Dec 31, 2018 | Dec 31, 2018 | Laredo Petroleum, Inc. | Leech 32-41 Unit A #1LSH | 6,700 | 22739589 |
| 848116 | Dec 21, 2018 | Dec 21, 2018 | Grenadier Energy Partners Ii,llc | Whitaker 39-46 LS #7LSH | 15,000 | 22739943 |
| 848115 | Dec 21, 2018 | Dec 21, 2018 | Grenadier Energy Partners Ii,llc | Whitaker 39-46 #6LSH | 15,000 | 22739942 |
| 848092 | Dec 21, 2018 | Dec 21, 2018 | Crownquest Operating, LLC | Sycamore F #9AAH | 10,000 | 22739941 |
| 848080 | Dec 21, 2018 | Dec 21, 2018 | Callon Petroleum Operating Co | Wright Unit 41-32 #11SHH | 8,800 | 22739939 |
| 848080Amendment | Dec 21, 2018 | Dec 21, 2018 | Callon Petroleum Operating Co | Wright Unit 41-32 #11SHH | 8,800 | 22739939 |
| 848079 | Dec 21, 2018 | Dec 21, 2018 | Callon Petroleum Operating Co | Wright Unit 41-32 #9AHH | 8,800 | 22739938 |
| 848079Amendment | Dec 21, 2018 | Dec 21, 2018 | Callon Petroleum Operating Co | Wright Unit 41-32 #9AHH | 8,800 | 22739938 |
| 848078 | Dec 21, 2018 | Dec 21, 2018 | Callon Petroleum Operating Co | Wright Unit 41-32 #3AHH | 8,800 | 22739937 |
| 848078Amendment | Dec 21, 2018 | Dec 21, 2018 | Callon Petroleum Operating Co | Wright Unit 41-32 #3AHH | 8,800 | 22739937 |
| 848062 | Dec 21, 2018 | Dec 21, 2018 | Crownquest Operating, LLC | Sycamore G #12LSH | 10,000 | 22739936 |
| 848029 | Dec 21, 2018 | Dec 21, 2018 | Crownquest Operating, LLC | Sycamore E #11LSH | 9,800 | 22739935 |
| 848022 | Dec 20, 2018 | Dec 20, 2018 | Crownquest Operating, LLC | Sycamore #10LSH | 9,800 | 22739934 |
| 848022Amendment | Dec 20, 2018 | Dec 20, 2018 | Crownquest Operating, LLC | Sycamore #10LSH | 9,800 | 22739934 |
| 847963 | Dec 20, 2018 | Dec 20, 2018 | Murchison Oil and Gas, LLC | Deacon Jim Unit 6-7 #2HAH | 7,305 | 22739930 |
| 847962 | Dec 20, 2018 | Dec 20, 2018 | Murchison Oil and Gas, LLC | Deacon Jim Unit 6-7 #1HAH | 7,305 | 22739929 |
| 847897 | Dec 18, 2018 | Dec 18, 2018 | SM Energy Company | Lucky #4745WAH | 10,500 | 22739927 |
| 847666 | Dec 18, 2018 | Dec 18, 2018 | OXY USA Inc. | Weber 3502 #1WAH | 9,000 | 22739928 |
| 847861 | Dec 17, 2018 | Dec 17, 2018 | Parsley Energy Operations, LLC | Guitar South 1-5-E #4209HH | 7,953 | 22739926 |
| 847860 | Dec 17, 2018 | Dec 17, 2018 | Parsley Energy Operations, LLC | Guitar South 1-5-F #4311HH | 8,148 | 22739925 |
| 847859 | Dec 17, 2018 | Dec 17, 2018 | Parsley Energy Operations, LLC | Guitar South 1-5-G #4214HH | 7,941 | 22739924 |
| 847812 | Dec 17, 2018 | Dec 17, 2018 | Grenadier Energy Partners Ii,llc | Oldham Trust #3876WAH | 14,000 | 22739922 |
| 847523 | Dec 17, 2018 | Dec 17, 2018 | SM Energy Company | Tackleberry 43-42 A #4243WAH | 10,500 | 22739899 |
| 847160 | Dec 17, 2018 | Dec 17, 2018 | Encana Oil & Gas(usa) Inc. | Guitar 14 #2 | 10,025 | 22737444 |
| 847808 | Dec 14, 2018 | Dec 14, 2018 | Sabalo Operating, LLC | Vince Everett 13-12 #1AHH | 9,000 | 22739920 |
| 847808Amendment | Dec 14, 2018 | Dec 14, 2018 | Sabalo Operating, LLC | Vince Everett 13-12 #1AHH | 9,000 | 22739920 |
| 847802 | Dec 14, 2018 | Dec 14, 2018 | Sabalo Operating, LLC | Pacer Burton 13-12 #4AHH | 9,000 | 22739919 |
| 847802Amendment | Dec 14, 2018 | Dec 14, 2018 | Sabalo Operating, LLC | Pacer Burton 13-12 #4AHH | 9,000 | 22739919 |
| 847758 | Dec 14, 2018 | Dec 14, 2018 | Surge Operating, LLC | Hamlin Unit 19-18 #1SHH | 9,000 | 22739917 |
| 847758Amendment | Dec 14, 2018 | Dec 14, 2018 | Surge Operating, LLC | Hamlin Unit 19-18 #1SHH | 9,000 | 22739917 |
| 847751 | Dec 14, 2018 | Dec 14, 2018 | Rover Petroleum Operating, LLC | Dodge, Granville M., Est. #257 | 3,000 | 22739923 |
| 847734 | Dec 14, 2018 | Dec 14, 2018 | Crownquest Operating, LLC | Sycamore D #8HBH | 10,000 | 22739916 |
| 847731 | Dec 14, 2018 | Dec 14, 2018 | Crownquest Operating, LLC | Sycamore D #7HAH | 10,000 | 22739915 |
| 847729 | Dec 14, 2018 | Dec 14, 2018 | Energen Resources Corporation | Mayo SN 48-37 08 #808HH | 9,500 | 22739912 |
| 847728 | Dec 14, 2018 | Dec 14, 2018 | Energen Resources Corporation | Mayo SN 48-37 08 #608HH | 9,500 | 22739911 |
| 847720 | Dec 14, 2018 | Dec 14, 2018 | Energen Resources Corporation | Mayo SN 48-37 06 #806HH | 9,500 | 22739914 |
| 847716 | Dec 14, 2018 | Dec 14, 2018 | Energen Resources Corporation | Mayo SN 48-37 06 #606HH | 9,500 | 22739913 |
| 847711 | Dec 14, 2018 | Dec 14, 2018 | Energen Resources Corporation | Mayo SN 48-37 06 #506HH | 9,500 | 22739910 |
| 847708 | Dec 14, 2018 | Dec 14, 2018 | Energen Resources Corporation | Mayo SN 48-37 05 #605HH | 9,500 | 22739918 |
| 847692 | Dec 13, 2018 | Dec 13, 2018 | Energen Resources Corporation | Mayo SN 48-37 05 #505HH | 9,500 | 22739909 |
| 847688 | Dec 13, 2018 | Dec 13, 2018 | Energen Resources Corporation | Mayo SN 48-37 04 #804HH | 9,500 | 22739908 |
| 847673 | Dec 13, 2018 | Dec 13, 2018 | Surge Operating, LLC | Garrett-Snell Unit a 25-36 #2SHH | 9,000 | 22739907 |
| 847672 | Dec 13, 2018 | Dec 13, 2018 | Surge Operating, LLC | Garrett-Snell Unit a 25-36 #2AHH | 9,000 | 22739906 |
| 847524 | Dec 11, 2018 | Dec 11, 2018 | SM Energy Company | Tackleberry 43-42 A #4222LSH | 10,400 | 22739900 |
| 847517 | Dec 10, 2018 | Dec 10, 2018 | SM Energy Company | Tackleberry 43-42 A #4223LSH | 10,400 | 22739897 |
| 847513 | Dec 10, 2018 | Dec 10, 2018 | SM Energy Company | Tackleberry 43-42 A #4244WAH | 10,500 | 22739896 |
| 846777 | Dec 10, 2018 | Dec 10, 2018 | Rover Petroleum Operating, LLC | Chalk, G. O. #42CF | 4,200 | 22739905 |
| 847600 | Dec 7, 2018 | Dec 7, 2018 | Rover Petroleum Operating, LLC | Chalk, G. O. #56CF | 4,300 | 22739903 |
| 847544 | Dec 7, 2018 | Dec 7, 2018 | Surge Operating, LLC | Garrett-Snell Unit a 25-36 #1BHH | 9,000 | 22739902 |
| 847543 | Dec 7, 2018 | Dec 7, 2018 | Surge Operating, LLC | Garrett-Snell Unit a 25-36 #1SHH | 9,000 | 22739901 |
| 847522 | Dec 7, 2018 | Dec 7, 2018 | SM Energy Company | Tackleberry 43-42 A #4242WAH | 10,500 | 22739898 |
| 847503 | Dec 7, 2018 | Dec 7, 2018 | Rover Petroleum Operating, LLC | Dodge, Granville M., Est. #247 | 3,000 | 22739904 |
| 847502 | Dec 7, 2018 | Dec 7, 2018 | SM Energy Company | Buttercup #2744WAH | 9,500 | 22739895 |
| 847500 | Dec 7, 2018 | Dec 7, 2018 | SM Energy Company | Vizzini #2745WAH | 9,500 | 22739894 |
| 847500Amendment | Dec 7, 2018 | Dec 7, 2018 | SM Energy Company | Vizzini #2745WAH | 9,500 | 22739894 |
| 847455 | Dec 6, 2018 | Dec 6, 2018 | Surge Operating, LLC | Stanley Unit 48-01 #3AHH | 9,000 | 22739893 |
| 847455Amendment | Dec 6, 2018 | Dec 6, 2018 | Surge Operating, LLC | Stanley Unit 48-01 #3AHH | 9,000 | 22739893 |