MAHAFFEY, SUE
MAHAFFEY, SUE is a Texas gas lease in Johnson County, Railroad Commission district 09, operated by Devon Energy Production Co, L.P. It has 1 wellbore on file with the Commission. Reported production runs from March 2006 to August 2026, totalling 1,780,283 thousand cubic feet. 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 $453K, with roughly $69K 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 3,194 thousand cubic feet a month. Its strongest month on the record we hold was July 2016, at 6,198 thousand cubic feet. In our own backtest, leases producing at this rate are forecast to within about 17% 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 MAHAFFEY, SUE
- Who operates MAHAFFEY, SUE?
- MAHAFFEY, SUE is operated by Devon Energy Production Co, L.P., Railroad Commission of Texas operator number 216378.
- Where is MAHAFFEY, SUE?
- MAHAFFEY, SUE is a Texas gas lease in Johnson County, Texas, in Railroad Commission district 09. Its Railroad Commission lease number is 216574.
- Is MAHAFFEY, SUE still producing?
- MAHAFFEY, SUE is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MAHAFFEY, SUE is August 2026.
- How much has MAHAFFEY, SUE produced?
- MAHAFFEY, SUE has reported 1,780,283 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between March 2006 and August 2026, from 1 wellbore.
- How much is MAHAFFEY, SUE worth?
- The remaining production from MAHAFFEY, SUE is estimated to be worth about $453K in total as of 26 August 2026, within a range of $376K to $530K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MAHAFFEY, SUE is a fraction of it. The estimate fits an Arps decline curve to the production MAHAFFEY, SUE has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MAHAFFEY, SUE is an estimate of value, not an offer and not an appraisal.
- How much income does MAHAFFEY, SUE generate in a year?
- MAHAFFEY, SUE is forecast to net about $69K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in MAHAFFEY, SUE receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Devon Energy Production Co, L.P. |
|---|---|
| Field | Newark, East (Barnett Shale) |
| County | Johnson County, Texas |
| RRC district | 09 |
| Lease number | 216574 |
| Wellbores | 1 |
| Reported production | 1,780,283 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $453K |
Where MAHAFFEY, SUE 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.