MASSINGALE, J.

MASSINGALE, J. is a Texas gas lease in Harrison County, Railroad Commission district 06, operated by Shelby Operating Company. It has 1 wellbore on file with the Commission. Reported production runs from May 2006 to August 2026, totalling 844,191 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 $313K, with roughly $80K 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 2,609 thousand cubic feet a month. Its strongest month on the record we hold was January 2025, at 3,381 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 MASSINGALE, J.

Who operates MASSINGALE, J.?
MASSINGALE, J. is operated by Shelby Operating Company, Railroad Commission of Texas operator number 773678.
Where is MASSINGALE, J.?
MASSINGALE, J. is a Texas gas lease in Harrison County, Texas, in Railroad Commission district 06. Its Railroad Commission lease number is 221362.
Is MASSINGALE, J. still producing?
MASSINGALE, J. is currently producing. The most recent month of production reported to the Railroad Commission of Texas for MASSINGALE, J. is August 2026.
How much has MASSINGALE, J. produced?
MASSINGALE, J. has reported 844,191 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between May 2006 and August 2026, from 1 wellbore.
How much is MASSINGALE, J. worth?
The remaining production from MASSINGALE, J. is estimated to be worth about $313K in total as of 26 August 2026, within a range of $260K to $366K. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in MASSINGALE, J. is a fraction of it. The estimate fits an Arps decline curve to the production MASSINGALE, J. has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for MASSINGALE, J. is an estimate of value, not an offer and not an appraisal.
How much income does MASSINGALE, J. generate in a year?
MASSINGALE, J. is forecast to net about $80K across the whole undivided lease over the twelve months following 26 August 2026, before income tax. A royalty owner in MASSINGALE, J. receives a fraction of that, set by the decimal interest printed on their check stub.

Lease record

MASSINGALE, J. as filed with the Railroad Commission of Texas
OperatorShelby Operating Company
FieldWaskom (Travis Peak 1)
CountyHarrison County, Texas
RRC district06
Lease number221362
Wellbores1
Reported production844,191 mcf
First reported
Last reported
Estimated royalty value$313K

Where MASSINGALE, 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.