WELDER-GULLEY
WELDER-GULLEY is a Texas oil lease in San Patricio County, Railroad Commission district 04, operated by Mertz Energy LLC. It has 1 wellbore on file with the Commission. Reported production runs from January 2016 to August 2026, totalling 21,308 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 $24K, with roughly $4K 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 barrels a month. Its strongest month on the record we hold was September 2016, at 688 barrels. In our own backtest, leases producing at this rate are forecast to within about 100% 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 WELDER-GULLEY
- Who operates WELDER-GULLEY?
- WELDER-GULLEY is operated by Mertz Energy LLC, Railroad Commission of Texas operator number 561386.
- Where is WELDER-GULLEY?
- WELDER-GULLEY is a Texas oil lease in San Patricio County, Texas, in Railroad Commission district 04. Its Railroad Commission lease number is 13985.
- Is WELDER-GULLEY still producing?
- WELDER-GULLEY is currently producing. The most recent month of production reported to the Railroad Commission of Texas for WELDER-GULLEY is August 2026.
- How much has WELDER-GULLEY produced?
- WELDER-GULLEY has reported 21,308 barrels of oil (bbl) to the Railroad Commission of Texas between January 2016 and August 2026, from 1 wellbore.
- How much is WELDER-GULLEY worth?
- The remaining production from WELDER-GULLEY is estimated to be worth about $24K in total as of 27 August 2026, within a range of $0 to $48K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in WELDER-GULLEY is a fraction of it. The estimate fits an Arps decline curve to the production WELDER-GULLEY has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for WELDER-GULLEY is an estimate of value, not an offer and not an appraisal.
- How much income does WELDER-GULLEY generate in a year?
- WELDER-GULLEY is forecast to net about $4K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in WELDER-GULLEY receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Mertz Energy LLC |
|---|---|
| Field | Oneil (5500) |
| County | San Patricio County, Texas |
| RRC district | 04 |
| Lease number | 13985 |
| Wellbores | 1 |
| Reported production | 21,308 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $24K |
Where WELDER-GULLEY 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.