HAYES, G. L. EF
HAYES, G. L. EF is a Texas oil lease in Mcmullen County, Railroad Commission district 01, operated by Swift Energy Operating, LLC. It has 6 wellbores on file with the Commission. Reported production runs from December 2010 to August 2026, totalling 526,380 barrels. 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 $1.4M, with roughly $288K 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 374 barrels a month, about 62 per wellbore. Its strongest month on the record we hold was December 2016, at 2,899 barrels. 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 HAYES, G. L. EF
- Who operates HAYES, G. L. EF?
- HAYES, G. L. EF is operated by Swift Energy Operating, LLC, Railroad Commission of Texas operator number 833348.
- Where is HAYES, G. L. EF?
- HAYES, G. L. EF is a Texas oil lease in Mcmullen County, Texas, in Railroad Commission district 01. Its Railroad Commission lease number is 15379.
- Is HAYES, G. L. EF still producing?
- HAYES, G. L. EF is currently producing. The most recent month of production reported to the Railroad Commission of Texas for HAYES, G. L. EF is August 2026.
- How much has HAYES, G. L. EF produced?
- HAYES, G. L. EF has reported 526,380 barrels of oil (bbl) to the Railroad Commission of Texas between December 2010 and August 2026, from 6 wellbores.
- How much is HAYES, G. L. EF worth?
- The remaining production from HAYES, G. L. EF is estimated to be worth about $1.4M in total as of 27 August 2026, within a range of $1.1M to $1.7M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in HAYES, G. L. EF is a fraction of it. The estimate fits an Arps decline curve to the production HAYES, G. L. EF has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for HAYES, G. L. EF is an estimate of value, not an offer and not an appraisal.
- How much income does HAYES, G. L. EF generate in a year?
- HAYES, G. L. EF is forecast to net about $288K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in HAYES, G. L. EF receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Swift Energy Operating, LLC |
|---|---|
| Field | Eagleville (Eagle Ford-1) |
| County | Mcmullen County, Texas |
| RRC district | 01 |
| Lease number | 15379 |
| Wellbores | 6 |
| Reported production | 526,380 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.4M |
Where HAYES, G. L. EF 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.