SPHINX UNIT 13-01
SPHINX UNIT 13-01 is a Texas oil lease in Borden County, Railroad Commission district 08, operated by Surge Operating, LLC. It has 2 wellbores on file with the Commission. Reported production runs from March 2024 to August 2026, totalling 273,508 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 $11.4M, with roughly $4.9M 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 9,269 barrels a month, about 4,635 per wellbore. Its strongest month on the record we hold was March 2025, at 20,861 barrels. In our own backtest, leases producing at this rate are forecast to within about 17% 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 SPHINX UNIT 13-01
- Who operates SPHINX UNIT 13-01?
- SPHINX UNIT 13-01 is operated by Surge Operating, LLC, Railroad Commission of Texas operator number 760725.
- Where is SPHINX UNIT 13-01?
- SPHINX UNIT 13-01 is a Texas oil lease in Borden County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 61672.
- Is SPHINX UNIT 13-01 still producing?
- SPHINX UNIT 13-01 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for SPHINX UNIT 13-01 is August 2026.
- How much has SPHINX UNIT 13-01 produced?
- SPHINX UNIT 13-01 has reported 273,508 barrels of oil (bbl) to the Railroad Commission of Texas between March 2024 and August 2026, from 2 wellbores.
- How much is SPHINX UNIT 13-01 worth?
- The remaining production from SPHINX UNIT 13-01 is estimated to be worth about $11.4M in total as of 26 August 2026, within a range of $9.5M to $13.3M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in SPHINX UNIT 13-01 is a fraction of it. The estimate fits an Arps decline curve to the production SPHINX UNIT 13-01 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for SPHINX UNIT 13-01 is an estimate of value, not an offer and not an appraisal.
- How much income does SPHINX UNIT 13-01 generate in a year?
- SPHINX UNIT 13-01 is forecast to net about $4.9M across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in SPHINX UNIT 13-01 receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Surge Operating, LLC |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Borden County, Texas |
| RRC district | 08 |
| Lease number | 61672 |
| Wellbores | 2 |
| Reported production | 273,508 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $11.4M |
Where SPHINX UNIT 13-01 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.