COBRA 10A
COBRA 10A is a Texas oil lease in Mcmullen County, Railroad Commission district 01, operated by Ridgemar Energy Operating, LLC. It has 1 wellbore on file with the Commission. Reported production runs from October 2024 to August 2026, totalling 163,804 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 $5.5M, with roughly $2.1M 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 5,079 barrels a month. Its strongest month on the record we hold was December 2024, at 21,285 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 COBRA 10A
- Who operates COBRA 10A?
- COBRA 10A is operated by Ridgemar Energy Operating, LLC, Railroad Commission of Texas operator number 101261.
- Where is COBRA 10A?
- COBRA 10A is a Texas oil lease in Mcmullen County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 21566.
- Is COBRA 10A still producing?
- COBRA 10A is currently producing. The most recent month of production reported to the Railroad Commission of Texas for COBRA 10A is August 2026.
- How much has COBRA 10A produced?
- COBRA 10A has reported 163,804 barrels of oil (bbl) to the Railroad Commission of Texas between October 2024 and August 2026, from 1 wellbore.
- How much is COBRA 10A worth?
- The remaining production from COBRA 10A is estimated to be worth about $5.5M in total as of 27 August 2026, within a range of $4.6M to $6.4M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in COBRA 10A is a fraction of it. The estimate fits an Arps decline curve to the production COBRA 10A has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for COBRA 10A is an estimate of value, not an offer and not an appraisal.
- How much income does COBRA 10A generate in a year?
- COBRA 10A is forecast to net about $2.1M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in COBRA 10A receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Ridgemar Energy Operating, LLC |
|---|---|
| Field | Eagleville (Eagle Ford-1) |
| County | Mcmullen County, Texas |
| RRC district | 01 |
| Lease number | 21566 |
| Wellbores | 1 |
| Reported production | 163,804 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $5.5M |
Where COBRA 10A 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.