BLALOCK 1321

BLALOCK 1321 is a Texas oil lease in Glasscock County, Railroad Commission district 08, operated by Xto Energy Inc. It has 2 wellbores on file with the Commission. Reported production runs from January 2022 to August 2026, totalling 640,937 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 $5.6M, with roughly $2.8M 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 4,690 barrels a month, about 2,345 per wellbore. Its strongest month on the record we hold was September 2022, at 60,381 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 BLALOCK 1321

Who operates BLALOCK 1321?
BLALOCK 1321 is operated by Xto Energy Inc., Railroad Commission of Texas operator number 945936.
Where is BLALOCK 1321?
BLALOCK 1321 is a Texas oil lease in Glasscock County, Texas, in Railroad Commission district 08. Its Railroad Commission lease number is 57419.
Is BLALOCK 1321 still producing?
BLALOCK 1321 is currently producing. The most recent month of production reported to the Railroad Commission of Texas for BLALOCK 1321 is August 2026.
How much has BLALOCK 1321 produced?
BLALOCK 1321 has reported 640,937 barrels of oil (bbl) to the Railroad Commission of Texas between January 2022 and August 2026, from 2 wellbores.
How much is BLALOCK 1321 worth?
The remaining production from BLALOCK 1321 is estimated to be worth about $5.6M in total as of 27 August 2026, within a range of $4.7M to $6.6M. That figure is the whole lease, undivided — not any one owner's share. A royalty interest in BLALOCK 1321 is a fraction of it. The estimate fits an Arps decline curve to the production BLALOCK 1321 has already reported, prices the remaining production at the current forward strip, and discounts it at 12% a year. The figure shown for BLALOCK 1321 is an estimate of value, not an offer and not an appraisal.
How much income does BLALOCK 1321 generate in a year?
BLALOCK 1321 is forecast to net about $2.8M across the whole undivided lease over the twelve months following 27 August 2026, before income tax. A royalty owner in BLALOCK 1321 receives a fraction of that, set by the decimal interest printed on their check stub.

Lease record

BLALOCK 1321 as filed with the Railroad Commission of Texas
OperatorXto Energy Inc.
FieldSpraberry (Trend Area)
CountyGlasscock County, Texas
RRC district08
Lease number57419
Wellbores2
Reported production640,937 bbl
First reported
Last reported
Estimated royalty value$5.6M

Where BLALOCK 1321 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.