HARTLEY 38
HARTLEY 38 is a Texas oil lease in Glasscock County, Railroad Commission district 08, operated by Mariner Energy, Inc. It has 15 wellbores on file with the Commission. Reported production runs from December 2008 to August 2026, totalling 347,576 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 $1.8M, with roughly $276K 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 175 barrels a month, about 12 per wellbore. Its strongest month on the record we hold was January 2017, at 796 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 HARTLEY 38
- Who operates HARTLEY 38?
- HARTLEY 38 is operated by Mariner Energy, Inc., Railroad Commission of Texas operator number 526155.
- Where is HARTLEY 38?
- HARTLEY 38 is a Texas oil lease in Glasscock County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 39557.
- Is HARTLEY 38 still producing?
- HARTLEY 38 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for HARTLEY 38 is August 2026.
- How much has HARTLEY 38 produced?
- HARTLEY 38 has reported 347,576 barrels of oil (bbl) to the Railroad Commission of Texas between December 2008 and August 2026, from 15 wellbores.
- How much is HARTLEY 38 worth?
- The remaining production from HARTLEY 38 is estimated to be worth about $1.8M in total as of 27 August 2026, within a range of $1.4M to $2.2M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in HARTLEY 38 is a fraction of it. The estimate fits an Arps decline curve to the production HARTLEY 38 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for HARTLEY 38 is an estimate of value, not an offer and not an appraisal.
- How much income does HARTLEY 38 generate in a year?
- HARTLEY 38 is forecast to net about $276K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in HARTLEY 38 receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Mariner Energy, Inc. |
|---|---|
| Field | Spraberry (Trend Area) |
| County | Glasscock County, Texas |
| RRC district | 08 |
| Lease number | 39557 |
| Wellbores | 15 |
| Reported production | 347,576 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.8M |
Where HARTLEY 38 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.