ADELFA
ADELFA is a Texas gas lease in Zapata County, Railroad Commission district 04, operated by Samson Lone Star LP. It has 1 wellbore on file with the Commission. Reported production runs from March 1998 to August 2026, totalling 1,257,785 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 $40K, with roughly $5K 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 226 thousand cubic feet a month. Its strongest month on the record we hold was September 2022, at 2,952 thousand cubic feet. 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 ADELFA
- Who operates ADELFA?
- ADELFA is operated by Samson Lone Star LP, Railroad Commission of Texas operator number 744700.
- Where is ADELFA?
- ADELFA is a Texas gas lease in Zapata County, Texas, in Railroad Commission district 04. Its Railroad Commission lease number is 167559.
- Is ADELFA still producing?
- ADELFA is currently producing. The most recent month of production reported to the Railroad Commission of Texas for ADELFA is August 2026.
- How much has ADELFA produced?
- ADELFA has reported 1,257,785 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between March 1998 and August 2026, from 1 wellbore.
- How much is ADELFA worth?
- The remaining production from ADELFA is estimated to be worth about $40K in total as of 27 August 2026, within a range of $31K to $49K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in ADELFA is a fraction of it. The estimate fits an Arps decline curve to the production ADELFA has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for ADELFA is an estimate of value, not an offer and not an appraisal.
- How much income does ADELFA generate in a year?
- ADELFA is forecast to net about $5K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in ADELFA receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Samson Lone Star LP |
|---|---|
| Field | San Ygnacio (Wilcox) |
| County | Zapata County, Texas |
| RRC district | 04 |
| Lease number | 167559 |
| Wellbores | 1 |
| Reported production | 1,257,785 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $40K |
Where ADELFA 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.