SULLIVAN UNIT
SULLIVAN UNIT is a Texas oil lease in Pecos County, Railroad Commission district 08, operated by Energen Resources Corporation. It has 30 wellbores on file with the Commission. Reported production runs from January 1998 to August 2026, totalling 151,200 barrels. The lease is currently producing. Fitting a decline curve to that history and pricing the remaining production at today's forward curve values the whole lease — a 100% undivided interest — at about $922K, with roughly $209K expected over the next twelve months. An individual royalty owner receives their own decimal interest times that figure. Over the last twelve months on file it averaged 281 barrels a month, about 9 per wellbore. Its strongest month on the record we hold was November 2021, at 541 barrels. In our own backtest, leases producing at this rate are forecast to within about 22% of what they went on to produce, and that measured error is the range shown on the page rather than a confidence of our own devising.
Key facts about SULLIVAN UNIT
- Who operates SULLIVAN UNIT?
- SULLIVAN UNIT is operated by Energen Resources Corporation, Railroad Commission of Texas operator number 252002.
- Where is SULLIVAN UNIT?
- SULLIVAN UNIT is a Texas oil lease in Pecos County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 35613.
- Is SULLIVAN UNIT still producing?
- SULLIVAN UNIT is currently producing. The most recent month of production reported to the Railroad Commission of Texas for SULLIVAN UNIT is August 2026.
- How much has SULLIVAN UNIT produced?
- SULLIVAN UNIT has reported 151,200 barrels of oil (bbl) to the Railroad Commission of Texas between January 1998 and August 2026, from 30 wellbores.
- How much is SULLIVAN UNIT worth?
- The remaining production from SULLIVAN UNIT is estimated to be worth about $922K in total as of 26 August 2026, within a range of $719K to $1.1M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in SULLIVAN UNIT is a fraction of it. The estimate fits an Arps decline curve to the production SULLIVAN UNIT has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for SULLIVAN UNIT is an estimate of value, not an offer and not an appraisal.
- How much income does SULLIVAN UNIT generate in a year?
- SULLIVAN UNIT is forecast to net about $209K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in SULLIVAN UNIT receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Energen Resources Corporation |
|---|---|
| Field | Brown & Thorp (Clear Fork) |
| County | Pecos County, Texas |
| RRC district | 08 |
| Lease number | 35613 |
| Wellbores | 30 |
| Reported production | 151,200 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $922K |
Where SULLIVAN UNIT sits
Source: Railroad Commission of Texas lease production records, complete through . Figures on this page were computed on .
Production figures are as reported to the Railroad Commission of Texas. The value shown is an estimate produced by fitting a decline curve to that reported history; it is not an offer or an appraisal. How this estimate is calculated.