SIERRA A
SIERRA A is a Texas oil lease in La Salle County, Railroad Commission district 01, operated by Eog Resources, Inc. It has 1 wellbore on file with the Commission. Reported production runs from March 2026 to August 2026, totalling 72,382 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 $107.3M, with roughly $20.4M 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 26,547 barrels a month. Its strongest month on the record we hold was March 2026, at 29,646 barrels. In our own backtest, leases producing at this rate are forecast to within about 18% 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 SIERRA A
- Who operates SIERRA A?
- SIERRA A is operated by Eog Resources, Inc., Railroad Commission of Texas operator number 253162.
- Where is SIERRA A?
- SIERRA A is a Texas oil lease in La Salle County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 21948.
- Is SIERRA A still producing?
- SIERRA A is currently producing. The most recent month of production reported to the Railroad Commission of Texas for SIERRA A is August 2026.
- How much has SIERRA A produced?
- SIERRA A has reported 72,382 barrels of oil (bbl) to the Railroad Commission of Texas between March 2026 and August 2026, from 1 wellbore.
- How much is SIERRA A worth?
- The remaining production from SIERRA A is estimated to be worth about $107.3M in total as of 27 August 2026, within a range of $88.0M to $126.6M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in SIERRA A is a fraction of it. The estimate fits an Arps decline curve to the production SIERRA A has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for SIERRA A is an estimate of value, not an offer and not an appraisal.
- How much income does SIERRA A generate in a year?
- SIERRA A is forecast to net about $20.4M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in SIERRA A receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Eog Resources, Inc. |
|---|---|
| Field | Eagleville (Eagle Ford-1) |
| County | La Salle County, Texas |
| RRC district | 01 |
| Lease number | 21948 |
| Wellbores | 1 |
| Reported production | 72,382 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $107.3M |
Where SIERRA A 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.