MCMULLAN
MCMULLAN is a Texas gas lease in Crockett County, Railroad Commission district 7C, operated by Amax Oil & Gas Inc. It has 1 wellbore on file with the Commission. Reported production runs from May 1993 to August 2026, totalling 2,798,649 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 $198K, 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 1,345 thousand cubic feet a month. Its strongest month on the record we hold was May 2016, at 2,824 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 MCMULLAN
- Who operates MCMULLAN?
- MCMULLAN is operated by Amax Oil & Gas Inc., Railroad Commission of Texas operator number 016859.
- Where is MCMULLAN?
- MCMULLAN is a Texas gas lease in Crockett County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 145629.
- Is MCMULLAN still producing?
- MCMULLAN is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MCMULLAN is August 2026.
- How much has MCMULLAN produced?
- MCMULLAN has reported 2,798,649 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between May 1993 and August 2026, from 1 wellbore.
- How much is MCMULLAN worth?
- The remaining production from MCMULLAN is estimated to be worth about $198K in total as of 27 August 2026, within a range of $165K to $232K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MCMULLAN is a fraction of it. The estimate fits an Arps decline curve to the production MCMULLAN has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MCMULLAN is an estimate of value, not an offer and not an appraisal.
- How much income does MCMULLAN generate in a year?
- MCMULLAN 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 MCMULLAN receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Amax Oil & Gas Inc. |
|---|---|
| Field | Davidson Ranch (Penn. 7890) |
| County | Crockett County, Texas |
| RRC district | 7C |
| Lease number | 145629 |
| Wellbores | 1 |
| Reported production | 2,798,649 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $198K |
Where MCMULLAN 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.