STS 'A'
STS 'A' is a Texas gas lease in La Salle County, Railroad Commission district 01, operated by Sierra Resources, LLC. It has 1 wellbore on file with the Commission. Reported production runs from February 2015 to August 2026, totalling 1,106,735 thousand cubic feet. 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 $78K, with roughly $30K 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 1,358 thousand cubic feet a month. Its strongest month on the record we hold was August 2016, at 15,418 thousand cubic feet. 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 STS 'A'
- Who operates STS 'A'?
- STS 'A' is operated by Sierra Resources, LLC, Railroad Commission of Texas operator number 780233.
- Where is STS 'A'?
- STS 'A' is a Texas gas lease in La Salle County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 279803.
- Is STS 'A' still producing?
- STS 'A' is currently producing. The most recent month of production reported to the Railroad Commission of Texas for STS 'A' is August 2026.
- How much has STS 'A' produced?
- STS 'A' has reported 1,106,735 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between February 2015 and August 2026, from 1 wellbore.
- How much is STS 'A' worth?
- The remaining production from STS 'A' is estimated to be worth about $78K in total as of 27 August 2026, within a range of $65K to $91K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in STS 'A' is a fraction of it. The estimate fits an Arps decline curve to the production STS 'A' has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for STS 'A' is an estimate of value, not an offer and not an appraisal.
- How much income does STS 'A' generate in a year?
- STS 'A' is forecast to net about $30K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in STS 'A' receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Sierra Resources, LLC |
|---|---|
| Field | A.W.P. (Olmos) |
| County | La Salle County, Texas |
| RRC district | 01 |
| Lease number | 279803 |
| Wellbores | 1 |
| Reported production | 1,106,735 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $78K |
Where STS '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.