HARTMAN
HARTMAN is a Texas oil lease in De Witt County, Railroad Commission district 02, operated by Cimarron Engineering Corp. It has 1 wellbore on file with the Commission. Reported production runs from July 2012 to August 2026, totalling 30,142 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 $344K, with roughly $66K 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 97 barrels a month. Its strongest month on the record we hold was July 2017, at 276 barrels. In our own backtest, leases producing at this rate are forecast to within about 45% 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 HARTMAN
- Who operates HARTMAN?
- HARTMAN is operated by Cimarron Engineering Corp., Railroad Commission of Texas operator number 153446.
- Where is HARTMAN?
- HARTMAN is a Texas oil lease in De Witt County, Texas, in Railroad Commission district 02. Its Railroad Commission lease number is 10352.
- Is HARTMAN still producing?
- HARTMAN is currently producing. The most recent month of production reported to the Railroad Commission of Texas for HARTMAN is August 2026.
- How much has HARTMAN produced?
- HARTMAN has reported 30,142 barrels of oil (bbl) to the Railroad Commission of Texas between July 2012 and August 2026, from 1 wellbore.
- How much is HARTMAN worth?
- The remaining production from HARTMAN is estimated to be worth about $344K in total as of 27 August 2026, within a range of $189K to $499K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in HARTMAN is a fraction of it. The estimate fits an Arps decline curve to the production HARTMAN has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for HARTMAN is an estimate of value, not an offer and not an appraisal.
- How much income does HARTMAN generate in a year?
- HARTMAN is forecast to net about $66K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in HARTMAN receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Cimarron Engineering Corp. |
|---|---|
| Field | Arneckeville (Yegua 4910) |
| County | De Witt County, Texas |
| RRC district | 02 |
| Lease number | 10352 |
| Wellbores | 1 |
| Reported production | 30,142 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $344K |
Where HARTMAN 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.