DUNCAN HEIRS UNIT
DUNCAN HEIRS UNIT is a Texas oil lease in Smith County, Railroad Commission district 06, operated by Southwestern Energy Prod. Co. It has 1 wellbore on file with the Commission. Reported production runs from November 2003 to August 2026, totalling 24,911 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 $276K, with roughly $49K 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 58 barrels a month. Its strongest month on the record we hold was March 2018, at 233 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 DUNCAN HEIRS UNIT
- Who operates DUNCAN HEIRS UNIT?
- DUNCAN HEIRS UNIT is operated by Southwestern Energy Prod. Co., Railroad Commission of Texas operator number 806668.
- Where is DUNCAN HEIRS UNIT?
- DUNCAN HEIRS UNIT is a Texas oil lease in Smith County, Texas, in Railroad Commission district 06. Its Railroad Commission lease number is 14367.
- Is DUNCAN HEIRS UNIT still producing?
- DUNCAN HEIRS UNIT is currently producing. The most recent month of production reported to the Railroad Commission of Texas for DUNCAN HEIRS UNIT is August 2026.
- How much has DUNCAN HEIRS UNIT produced?
- DUNCAN HEIRS UNIT has reported 24,911 barrels of oil (bbl) to the Railroad Commission of Texas between November 2003 and August 2026, from 1 wellbore.
- How much is DUNCAN HEIRS UNIT worth?
- The remaining production from DUNCAN HEIRS UNIT is estimated to be worth about $276K in total as of 26 August 2026, within a range of $152K to $400K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in DUNCAN HEIRS UNIT is a fraction of it. The estimate fits an Arps decline curve to the production DUNCAN HEIRS UNIT has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for DUNCAN HEIRS UNIT is an estimate of value, not an offer and not an appraisal.
- How much income does DUNCAN HEIRS UNIT generate in a year?
- DUNCAN HEIRS UNIT is forecast to net about $49K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in DUNCAN HEIRS UNIT receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Southwestern Energy Prod. Co. |
|---|---|
| Field | Good Omen (Pettit) |
| County | Smith County, Texas |
| RRC district | 06 |
| Lease number | 14367 |
| Wellbores | 1 |
| Reported production | 24,911 bbl |
| First reported | |
| Last reported | |
| Estimated royalty value | $276K |
Where DUNCAN HEIRS 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.