MCMULLAN 18 GU
MCMULLAN 18 GU 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 January 1993 to August 2026, totalling 464,851 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 $30K, with roughly $6K 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 332 thousand cubic feet a month. Its strongest month on the record we hold was April 2021, at 1,058 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 MCMULLAN 18 GU
- Who operates MCMULLAN 18 GU?
- MCMULLAN 18 GU is operated by Amax Oil & Gas Inc., Railroad Commission of Texas operator number 016859.
- Where is MCMULLAN 18 GU?
- MCMULLAN 18 GU is a Texas gas lease in Crockett County, Texas, in Railroad Commission district 7C. Its Railroad Commission lease number is 045950.
- Is MCMULLAN 18 GU still producing?
- MCMULLAN 18 GU is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MCMULLAN 18 GU is August 2026.
- How much has MCMULLAN 18 GU produced?
- MCMULLAN 18 GU has reported 464,851 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026, from 1 wellbore.
- How much is MCMULLAN 18 GU worth?
- The remaining production from MCMULLAN 18 GU is estimated to be worth about $30K in total as of 26 August 2026, within a range of $23K to $36K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MCMULLAN 18 GU is a fraction of it. The estimate fits an Arps decline curve to the production MCMULLAN 18 GU has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MCMULLAN 18 GU is an estimate of value, not an offer and not an appraisal.
- How much income does MCMULLAN 18 GU generate in a year?
- MCMULLAN 18 GU is forecast to net about $6K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in MCMULLAN 18 GU receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Amax Oil & Gas Inc. |
|---|---|
| Field | Ozona (Canyon Sand) |
| County | Crockett County, Texas |
| RRC district | 7C |
| Lease number | 045950 |
| Wellbores | 1 |
| Reported production | 464,851 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $30K |
Where MCMULLAN 18 GU 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.