SHAFTER LAKE (YATES), District 08, Texas

A field is the Railroad Commission's unit of geology and of regulation. Its spacing rule is what decides how many wells an acreage can hold.

Leases
96
with a page here
Operators
32
Value, all time
$41.9 M
71% of the register's 136
Discovered
1952-03-16
Oil and gas

Our estimate: volumes the operator filed with the Commission, valued at the EIA first-purchase price for that month. It is not a payment anyone received, and it is not a royalty. It sums the 96 leases in this field that have a page here — 71% of the register's 136 — so it understates the field.

Production, 2025

The Railroad Commission's Oil and Gas Annual Report for 2025, its most recent. These are the state's figures for the whole field, not ours.

WellsIn the fieldProducingProduced in 2025Also producedCumulative
Oil35293,966 bbl0 mcfcasinghead2,102,594 bblsince discovery
Gas491611,242 mcf0 bblcondensate21,814,070 mcfsince 1970

The discovery well's oil measured 43.2° API gravity, perforated at 3,054 ft.

Spacing rule

What the Commission requires of a well on this field.

The register files no field rule here. Statewide spacing applies.

Commission remarks: 9/30/97

County

Leases in this field

Every lease here files this field's number with the Commission and has a page on this site.

LeaseOperatorValue
SHAFTER LAKE/YATES/OIL FLD. UNITEAGLE NATURAL RESOURCES, LLC$5.2 M
UNIVERSITY 3-14 NE1836 ENERGY LLC$3.0 M
UNIVERSITY 8-141836 ENERGY LLC$2.1 M
STEVENSON, JAMESHIGHMARK ENERGY OPERATING, LLC$1.9 M
UNIVERSITY 12-14 NE1836 ENERGY LLC$1.5 M
UNIVERSITY 3-141836 ENERGY LLC$1.4 M
UNIVERSITY -L-BRADY, W. PRODUCTION, INC.$1.3 M
UNIVERSITY "C"HIGHMARK ENERGY OPERATING, LLC$1.2 M
UNIVERSITY "I"HIGHMARK ENERGY OPERATING, LLC$1.1 M
SHELTONUNITEX OIL & GAS, L.L.C.$1.1 M
STEVENSON, J. M.TOM OPERATING AND MINERALS LLC$1.0 M
UNIVERSITY 9-141836 ENERGY LLC$859 k
UNIVERSITY "I"HENRY PETROLEUM LP$858 k
STATE SCHOOL BOARDTOM OPERATING AND MINERALS LLC$831 k
UNIVERSITY 13BROCK, J.$814 k
UNIVERSITYBRADY, W. PRODUCTION, INC.$781 k
UNIVERSITY "P"SCOUT ENERGY MANAGEMENT LLC$765 k
UNIVERSITY 3-14 NE1836 ENERGY LLC$703 k
UNIVERSITY 3-141836 ENERGY LLC$686 k
UNIVERSITYBRADY, W. PRODUCTION, INC.$649 k
UNIVERSITY 9-14 SW1836 ENERGY LLC$640 k
UNIVERSITY 3-141836 ENERGY LLC$626 k
UNIVERSITY 3-141836 ENERGY LLC$616 k
UNIVERSITY 13-141836 ENERGY LLC$583 k
UNIVERSITY 8-141836 ENERGY LLC$578 k
KELLYEAGLE NATURAL RESOURCES, LLC$546 k
MASTHARTER, RON$531 k
J. E. C. MASTCARRUTH OIL & GAS, LLC$511 k
ST. OF TEXAS -H-TOM OPERATING AND MINERALS LLC$449 k
LINDLEYALLEDER INC.$441 k
PRETTY CLOUDMONTARE OPERATING, LTD.$438 k
UNIVERSITY 13-141836 ENERGY LLC$386 k
UNIVERSITY 9-14 SWFUELED RESOURCES INC$380 k
UNIVERSITY 9-141836 ENERGY LLC$378 k
UNIVERSITY 9-141836 ENERGY LLC$369 k
UNIVERSITY 14-12LZB ENERGY, LLC$361 k
UNIVERSITY 3-141836 ENERGY LLC$354 k
UNIVERSITY 10-14REO OPERATING LLC$344 k
UNIVERSITY BLK 14CARRUTH OIL & GAS, LLC$323 k
ST. OF TEXAS -H-TOM OPERATING AND MINERALS LLC$299 k
UNIVERSITY 14-11CARRUTH OIL & GAS, LLC$285 k
UNIVERSITY -38N-SHINNERY OIL COMPANY, INC.$269 k
UNIVERSITY BLK 14CARRUTH OIL & GAS, LLC$268 k
UNIVERSITY 9-141836 ENERGY LLC$261 k
UNIVERSITY 10-141836 ENERGY LLC$253 k
UNIVERSITY -38S-SHINNERY OIL COMPANY, INC.$245 k
UNIVERSITY 9-141836 ENERGY LLC$235 k
UNIVERSITY BLK 14CARRUTH OIL & GAS, LLC$226 k
UNIVERSITY 8-141836 ENERGY LLC$223 k
UNIVERSITY "I"HIGHMARK ENERGY OPERATING, LLC$218 k
UNIVERSITY -38S- ASHINNERY OIL COMPANY, INC.$195 k
UNIVERSITY -38- SWHITEHAWK PRODUCTION COMPANY$192 k
UNIVERSITY -P-CARRUTH OIL & GAS, LLC$181 k
UNIVERSITY 9-14 SW1836 ENERGY LLC$146 k
UNIVERSITY "13-F"BAKER OPERATING, INC.$141 k
UNIVERSITY -142-LEGACY RESERVES OPERATING LP$131 k
CREWS, E. R. ESTATETOM OPERATING AND MINERALS LLC$126 k
UNIVERSITY 3-14 NEREO OPERATING LLC$119 k
UNIVERSITY 12-14BIG D ENERGY COMPANY$118 k
UNIVERSITY 14-9LZB ENERGY, LLC$105 k
UNIVERSITY LANDSSBJ ENERGY PARTNERS, L.L.C.$83 k
UNIVERSITY 38 ASANDRIDGE EXPL. AND PROD., LLC$82 k
UNIVERSITY "Y"HENRY PETROLEUM LP$79 k
UNIVERSITYFUELED RESOURCES INC$76 k
UNIVERSITY 14-3LZB ENERGY, LLC$67 k
UNIVERSITY -38- NWHITEHAWK PRODUCTION COMPANY$64 k
UNIVERSITY 38 BSANDRIDGE EXPL. AND PROD., LLC$62 k
THE UNIVERSITY OF TEXASFUELED RESOURCES INC$61 k
UNIVERSITY -38N-ASHINNERY OIL COMPANY, INC.$53 k
UNIVERSITY BLOCK 14 CONSRING ENERGY, INC.$52 k
UNIVERSITY 14-10LZB ENERGY, LLC$51 k
UNIVERSITY "J"COG OPERATING LLC$47 k
UNIVERSITY 12-14 NEFUELED RESOURCES INC$44 k
UNIVERSITY 9-14REO OPERATING LLC$42 k
UNIVERSITY 13-14 SOUTHBIG D ENERGY COMPANY$38 k
UNIVERSITY 14-3LZB ENERGY, LLC$34 k
PHILLIPS-UNIVERSITYBIG D ENERGY COMPANY$24 k
FISHERBRAMMER ENGINEERING, INC.$20 k
UNIVERSITY 12-14BIG D ENERGY COMPANY$17 k
UNIVERSITY 13-14 SOUTHBIG D ENERGY COMPANY$17 k
UNIVERSITY -C-KINNEY INCORPORATED$17 k
UNIVERSITY 13-14 SOUTHBIG D ENERGY COMPANY$14 k
UNIVERSITYBIG D ENERGY COMPANY$10 k
UNIVERSITY 14-8LZB ENERGY, LLC$8 k
UNIVERSITY "48"BIG D ENERGY COMPANY$5 k
UNIVERSITY -142-LEGACY RESERVES OPERATING LP$5 k
J. E. C. MASTCARRUTH OIL & GAS, LLC$2 k
J. E. C. MASTCARRUTH OIL & GAS, LLC$1 k
UNIVERSITY 34-13HICON GAS PRODUCERS, INC.$244
HAYDEN MILES "A"MARALO, INC.
DEEP ROCK ETAL "A"MARALO, INC.
MILES, HAYDEN "B"MARALO, INC.
DEEP ROCK "B"MARALO, INC.
UNIVERSITY LANDS 38 "S"MINIHAN OIL & GAS CORPORATION
UNIVERSITY 14-9BROWN, L. Z.
UNIVERSITY -R-BC OPERATING, INC.

Field number 82570700, from the Railroad Commission's field register. The register's own index resolves 136 leases and 215 wells to this field by name, over every lease in Texas rather than only those with a page here. It resolves a lease by NAME and refuses an ambiguous one, so it counts nothing for a field that shares its name with another — which is why the lease count above comes from the field number instead.