GILLEY UNIT
GILLEY UNIT is a Texas gas lease in Karnes County, Railroad Commission district 02, operated by Marathon Oil Ef LLC. It has 1 wellbore on file with the Commission. Reported production runs from March 2017 to August 2026, totalling 582,179 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 $1.6M, with roughly $337K 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 4,047 thousand cubic feet a month. Its strongest month on the record we hold was March 2017, at 37,068 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 GILLEY UNIT
- Who operates GILLEY UNIT?
- GILLEY UNIT is operated by Marathon Oil Ef LLC, Railroad Commission of Texas operator number 525398.
- Where is GILLEY UNIT?
- GILLEY UNIT is a Texas gas lease in Karnes County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 294887.
- Is GILLEY UNIT still producing?
- GILLEY UNIT is currently producing. The most recent month of production reported to the Railroad Commission of Texas for GILLEY UNIT is August 2026.
- How much has GILLEY UNIT produced?
- GILLEY UNIT has reported 582,179 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between March 2017 and August 2026, from 1 wellbore.
- How much is GILLEY UNIT worth?
- The remaining production from GILLEY UNIT is estimated to be worth about $1.6M in total as of 26 August 2026, within a range of $1.3M to $1.9M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in GILLEY UNIT is a fraction of it. The estimate fits an Arps decline curve to the production GILLEY UNIT has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for GILLEY UNIT is an estimate of value, not an offer and not an appraisal.
- How much income does GILLEY UNIT generate in a year?
- GILLEY UNIT is forecast to net about $337K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in GILLEY UNIT receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Marathon Oil Ef LLC |
|---|---|
| Field | Eagleville (Eagle Ford-2) |
| County | Karnes County, Texas |
| RRC district | 02 |
| Lease number | 294887 |
| Wellbores | 1 |
| Reported production | 582,179 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.6M |
Where GILLEY UNIT 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.