GRISSOM
GRISSOM is a Texas gas lease in Culberson County, Railroad Commission district 08, operated by Cog Operating LLC. It has 1 wellbore on file with the Commission. Reported production runs from July 2018 to August 2026, totalling 1,515,638 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 $1.7M, with roughly $705K 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 8,158 thousand cubic feet a month. Its strongest month on the record we hold was September 2018, at 73,781 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 GRISSOM
- Who operates GRISSOM?
- GRISSOM is operated by Cog Operating LLC, Railroad Commission of Texas operator number 166150.
- Where is GRISSOM?
- GRISSOM is a Texas gas lease in Culberson County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 286334.
- Is GRISSOM still producing?
- GRISSOM is currently producing. The most recent month of production reported to the Railroad Commission of Texas for GRISSOM is August 2026.
- How much has GRISSOM produced?
- GRISSOM has reported 1,515,638 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between July 2018 and August 2026, from 1 wellbore.
- How much is GRISSOM worth?
- The remaining production from GRISSOM is estimated to be worth about $1.7M in total as of 26 August 2026, within a range of $1.4M to $2.0M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in GRISSOM is a fraction of it. The estimate fits an Arps decline curve to the production GRISSOM has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for GRISSOM is an estimate of value, not an offer and not an appraisal.
- How much income does GRISSOM generate in a year?
- GRISSOM is forecast to net about $705K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in GRISSOM receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Cog Operating LLC |
|---|---|
| Field | Ford, West (Wolfcamp) |
| County | Culberson County, Texas |
| RRC district | 08 |
| Lease number | 286334 |
| Wellbores | 1 |
| Reported production | 1,515,638 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.7M |
Where GRISSOM 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.