HARPER "J"
HARPER "J" is a Texas oil lease in Rusk County, Railroad Commission district 06, operated by Marathon Oil Company. It has 1 wellbore on file with the Commission. Reported production runs from January 1993 to August 2026, totalling 80,772 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 $203K, with roughly $32K 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 19 barrels a month. Its strongest month on the record we hold was February 2022, at 132 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 HARPER "J"
- Who operates HARPER "J"?
- HARPER "J" is operated by Marathon Oil Company, Railroad Commission of Texas operator number 525380.
- Where is HARPER "J"?
- HARPER "J" is a Texas oil lease in Rusk County, Texas, in Railroad Commission district 06. Its Railroad Commission lease number is 12742.
- Is HARPER "J" still producing?
- HARPER "J" is currently producing. The most recent month of production reported to the Railroad Commission of Texas for HARPER "J" is August 2026.
- How much has HARPER "J" produced?
- HARPER "J" has reported 80,772 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and August 2026, from 1 wellbore.
- How much is HARPER "J" worth?
- The remaining production from HARPER "J" is estimated to be worth about $203K in total as of 26 August 2026, within a range of $112K to $294K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in HARPER "J" is a fraction of it. The estimate fits an Arps decline curve to the production HARPER "J" has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for HARPER "J" is an estimate of value, not an offer and not an appraisal.
- How much income does HARPER "J" generate in a year?
- HARPER "J" is forecast to net about $32K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in HARPER "J" receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Marathon Oil Company |
|---|---|
| Field | Laneville, Ne. (Pettit, Lo.) |
| County | Rusk County, Texas |
| RRC district | 06 |
| Lease number | 12742 |
| Wellbores | 1 |
| Reported production | 80,772 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $203K |
Where HARPER "J" 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.