ZAP
ZAP is a Texas gas lease in Shelby County, Railroad Commission district 06, operated by Marathon Oil Company. It has 1 wellbore on file with the Commission. Reported production runs from November 2001 to August 2026, totalling 730,979 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 $47K, with roughly $6K 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 246 thousand cubic feet a month. Its strongest month on the record we hold was March 2025, at 843 thousand cubic feet. 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 ZAP
- Who operates ZAP?
- ZAP is operated by Marathon Oil Company, Railroad Commission of Texas operator number 525380.
- Where is ZAP?
- ZAP is a Texas gas lease in Shelby County, Texas, in Railroad Commission district 06. Its Railroad Commission lease number is 187662.
- Is ZAP still producing?
- ZAP is currently producing. The most recent month of production reported to the Railroad Commission of Texas for ZAP is August 2026.
- How much has ZAP produced?
- ZAP has reported 730,979 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between November 2001 and August 2026, from 1 wellbore.
- How much is ZAP worth?
- The remaining production from ZAP is estimated to be worth about $47K in total as of 27 August 2026, within a range of $37K to $58K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in ZAP is a fraction of it. The estimate fits an Arps decline curve to the production ZAP has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for ZAP is an estimate of value, not an offer and not an appraisal.
- How much income does ZAP generate in a year?
- ZAP is forecast to net about $6K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in ZAP receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Marathon Oil Company |
|---|---|
| Field | Bridges, E. (James Lime) |
| County | Shelby County, Texas |
| RRC district | 06 |
| Lease number | 187662 |
| Wellbores | 1 |
| Reported production | 730,979 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $47K |
Where ZAP 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.