SWAIN, D. L. 11 -AC-

SWAIN, D. L. 11 -AC- is a Texas oil lease in Van Zandt County, Railroad Commission district 05, operated by Union Oil Company Of California. It has 7 wellbores on file with the Commission. Reported production runs from January 1993 to August 2026, totalling 851,777 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 $4.3M, with roughly $967K 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 1,409 barrels a month, about 201 per wellbore. Its strongest month on the record we hold was May 2023, at 1,782 barrels. 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 SWAIN, D. L. 11 -AC-

Who operates SWAIN, D. L. 11 -AC-?: SWAIN, D. L. 11 -AC- is operated by Union Oil Company Of California, Railroad Commission of Texas operator number 876520.
Where is SWAIN, D. L. 11 -AC-?: SWAIN, D. L. 11 -AC- is a Texas oil lease in Van Zandt County, Texas, in Railroad Commission district 05. Its Railroad Commission lease number is 02087.
Is SWAIN, D. L. 11 -AC- still producing?: SWAIN, D. L. 11 -AC- is currently producing. The most recent month of production reported to the Railroad Commission of Texas for SWAIN, D. L. 11 -AC- is August 2026.
How much has SWAIN, D. L. 11 -AC- produced?: SWAIN, D. L. 11 -AC- has reported 851,777 barrels of oil (bbl) to the Railroad Commission of Texas between January 1993 and August 2026, from 7 wellbores.
How much is SWAIN, D. L. 11 -AC- worth?: The remaining production from SWAIN, D. L. 11 -AC- is estimated to be worth about $4.3M in total as of 27 August 2026, within a range of $3.6M to $5.0M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in SWAIN, D. L. 11 -AC- is a fraction of it. The estimate fits an Arps decline curve to the production SWAIN, D. L. 11 -AC- has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for SWAIN, D. L. 11 -AC- is an estimate of value, not an offer and not an appraisal.
How much income does SWAIN, D. L. 11 -AC- generate in a year?: SWAIN, D. L. 11 -AC- is forecast to net about $967K across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in SWAIN, D. L. 11 -AC- receives a fraction of that, set by the decimal interest printed on their check stub.

Lease record

SWAIN, D. L. 11 -AC- as filed with the Railroad Commission of Texas
Operator	Union Oil Company Of California
Field	Van
County	Van Zandt County, Texas
RRC district	05
Lease number	02087
Wellbores	7
Reported production	851,777 bbl
First reported	January 1993
Last reported	August 2026
Estimated royalty value	$4.3M

Where SWAIN, D. L. 11 -AC- sits

Source: Railroad Commission of Texas lease production records, complete through August 2026. Figures on this page were computed on 27 August 2026.

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.