J. E. C. MAST
J. E. C. MAST is a Texas gas lease in Andrews County, Railroad Commission district 08, operated by Carruth Oil & Gas, LLC. It has 1 wellbore on file with the Commission. Reported production runs from July 2024 to August 2026, totalling 496 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 $3K, with roughly $358 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 22 thousand cubic feet a month. Its strongest month on the record we hold was January 2025, at 55 thousand cubic feet. In our own backtest, leases producing at this rate are forecast to within about 45% 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 J. E. C. MAST
- Who operates J. E. C. MAST?
- J. E. C. MAST is operated by Carruth Oil & Gas, LLC, Railroad Commission of Texas operator number 135967.
- Where is J. E. C. MAST?
- J. E. C. MAST is a Texas gas lease in Andrews County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 298129.
- Is J. E. C. MAST still producing?
- J. E. C. MAST is currently producing. The most recent month of production reported to the Railroad Commission of Texas for J. E. C. MAST is August 2026.
- How much has J. E. C. MAST produced?
- J. E. C. MAST has reported 496 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between July 2024 and August 2026, from 1 wellbore.
- How much is J. E. C. MAST worth?
- The remaining production from J. E. C. MAST is estimated to be worth about $3K in total as of 26 August 2026, within a range of $2K to $4K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in J. E. C. MAST is a fraction of it. The estimate fits an Arps decline curve to the production J. E. C. MAST has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for J. E. C. MAST is an estimate of value, not an offer and not an appraisal.
- How much income does J. E. C. MAST generate in a year?
- J. E. C. MAST is forecast to net about $358 across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in J. E. C. MAST receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Carruth Oil & Gas, LLC |
|---|---|
| Field | Shafter Lake (Yates) |
| County | Andrews County, Texas |
| RRC district | 08 |
| Lease number | 298129 |
| Wellbores | 1 |
| Reported production | 496 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $3K |
Where J. E. C. MAST 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.