| 1 | SAL MAR | Union County, AR | Oil Property | Dec 2025 |
| 2 | SAMPLE REAL | Union County, AR | Oil Property | Apr 2022 |
| 3 | SANDY BEND NACATOCH UNIT | Union County, AR | Oil Property | Mar 2026 |
| 4 | SAXON | Union County, AR | Oil & Gas Property | Mar 2026 |
| 5 | SAXON | Union County, AR | Oil Property | Aug 2025 |
| 6 | SCHMIDT | Union County, AR | Oil Property | Apr 2026 |
| 7 | SHEPPARD | Union County, AR | Oil Property | Oct 2025 |
| 8 | SHULER HILL UNIT | Union County, AR | Oil & Gas Property | Apr 2026 |
| 9 | SHULER HILL UNIT | Union County, AR | Oil Property | Mar 2020 |
| 10 | SIMMONS | Union County, AR | Oil Property | Apr 2026 |
| 11 | SMACKOVER STEAM-THERMAL RECOVERY UNIT | Union County, AR | Oil Property | Mar 2026 |
| 12 | SMACKOVER T.C. MURPHY UNIT | Union County, AR | Oil Property | Mar 2026 |
| 13 | SMITH | Union County, AR | Oil Property | Dec 2025 |
| 14 | SMITH | Union County, AR | Oil Property | Mar 2026 |
| 15 | SMITH | Union County, AR | Oil Property | Feb 1985 |
| 16 | SMITH | Union County, AR | Oil Property | Mar 2026 |
| 17 | SMITH, ANN | Union County, AR | Oil & Gas Property | Jan 2023 |
| 18 | SNYDER | Union County, AR | Oil Property | Apr 1994 |
| 19 | SOUTHERN | Union County, AR | Oil & Gas Property | Nov 2025 |
| 20 | SPENCER | Union County, AR | Oil Property | Apr 2026 |
| 21 | SPENCER-SINCLAIR | Union County, AR | Oil Property | Apr 2026 |
| 22 | SPENCER-TOWNSEND | Union County, AR | Oil Property | Apr 2026 |
| 23 | SPOONER | Union County, AR | Oil & Gas Property | Apr 2026 |
| 24 | STATE LINE SMACKOVER UNIT | Union County, AR | Oil Property | Feb 2026 |
| 25 | STONE | Union County, AR | Oil Property | Nov 1962 |
| 26 | SUGGS | Union County, AR | Oil & Gas Property | Mar 2026 |
| 27 | SUGGS, M L | Union County, AR | Oil Property | Mar 2020 |
| 28 | SUMNERS, M L | Union County, AR | Oil & Gas Property | Nov 2001 |
| 29 | SWILLEY | Union County, AR | Oil Property | Aug 2025 |