MASTODON
MASTODON is a Texas gas lease in Tarrant County, Railroad Commission district 09, operated by Chesapeake Operating, Inc. It has 1 wellbore on file with the Commission. Reported production runs from January 2013 to August 2026, totalling 3,437,965 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 $1.1M, with roughly $167K 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 6,628 thousand cubic feet a month. Its strongest month on the record we hold was May 2016, at 27,530 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 MASTODON
- Who operates MASTODON?
- MASTODON is operated by Chesapeake Operating, Inc., Railroad Commission of Texas operator number 147715.
- Where is MASTODON?
- MASTODON is a Texas gas lease in Tarrant County, Texas, in Railroad Commission district 09. Its Railroad Commission lease number is 269122.
- Is MASTODON still producing?
- MASTODON is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MASTODON is August 2026.
- How much has MASTODON produced?
- MASTODON has reported 3,437,965 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 2013 and August 2026, from 1 wellbore.
- How much is MASTODON worth?
- The remaining production from MASTODON is estimated to be worth about $1.1M in total as of 27 August 2026, within a range of $891K to $1.3M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MASTODON is a fraction of it. The estimate fits an Arps decline curve to the production MASTODON has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MASTODON is an estimate of value, not an offer and not an appraisal.
- How much income does MASTODON generate in a year?
- MASTODON is forecast to net about $167K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in MASTODON receives a fraction of that, set by the decimal interest printed on their check stub.
Lease record
| Operator | Chesapeake Operating, Inc. |
|---|---|
| Field | Newark, East (Barnett Shale) |
| County | Tarrant County, Texas |
| RRC district | 09 |
| Lease number | 269122 |
| Wellbores | 1 |
| Reported production | 3,437,965 mcf |
| First reported | |
| Last reported | |
| Estimated royalty value | $1.1M |
Where MASTODON 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.