SAND HILLS (JUDKINS), 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

358

with a page here

Operators

Value, all time

$1.43 bn

79% of the register's 452

Discovered

1960-09-01

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 358 leases in this field that have a page here — 79% of the register's 452 — 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.

Wells	In the field	Producing	Produced in 2025	Also produced	Cumulative
Oil	424	220	1,205,604 bbl	5,045,257 mcfcasinghead	22,381,056 bblsince discovery
Gas	217	125	1,206,888 mcf	5,641 bblcondensate	874,838,353 mcfsince 1970

The discovery well's oil measured 33.0° API gravity, perforated at 3,000 ft.

Hydrogen sulphide

Spacing rule

What the Commission requires of a well on this field.

Wells	Rule	Effective	From the lease line	Between wells	Acres per unit	Max diagonal
Oil	B	2025-01-29	330 ft	0 ft	40	0 ft
Oil	O	2025-01-29	330 ft	0 ft	10	1,500 ft
Gas	B	—	1,320 ft	2,640 ft	40	6,500 ft

Commission remarks: ORDER 8-48935 EFF. 6/6/62.

County

Crane County

Leases in this field

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

Showing the 200 largest of 358 leases, by the value we compute. Every one of them is in the sitemap.

Lease	Operator	Value
WADDELL TR A	BLACKBEARD OPERATING, LLC	$477.6 M
TUBB, J. B., ETAL	RING ENERGY, INC.	$135.5 M
MCKNIGHT, M. B.	RING ENERGY, INC.	$62.1 M
TUBB, J.B. -B- TR-A	WALSH & WATTS, INC.	$54.1 M
TUBB-STATE, J. B.	BLACKBEARD OPERATING, LLC	$46.7 M
TUBB, J. B. -A-	RING ENERGY, INC.	$40.8 M
TUBB, J. B. "F"	FORMENTERA OPERATIONS LLC	$32.7 M
TUBB -A-	MILLWEE OIL, INC.	$21.7 M
TUBB, J. B. ETAL TR. -C-	RING ENERGY, INC.	$20.8 M
TUBB, J. B., A/C 1	FORMENTERA OPERATIONS LLC	$17.8 M
TUBB, J.B. -B-	RING ENERGY, INC.	$8.4 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$8.3 M
WADDELL TR I	BLACKBEARD OPERATING, LLC	$7.7 M
TUBB	RING ENERGY, INC.	$7.0 M
TUBB, J. B. A/C-2	FORMENTERA OPERATIONS LLC	$6.5 M
TUBB, J. B. "B"	FORMENTERA OPERATIONS LLC	$6.3 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$5.9 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$5.8 M
WADDELL, W.N. ET AL	BLACKBEARD OPERATING, LLC	$5.7 M
JUDKINS GAS UNIT III	FORMENTERA OPERATIONS LLC	$5.3 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$5.2 M
MCKNIGHT, M. B.	WILLIAMS OIL COMPANY	$5.1 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$5.0 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$4.8 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$4.8 M
J B TUBB J	FORMENTERA OPERATIONS LLC	$4.8 M
WADDELL TR B	BLACKBEARD OPERATING, LLC	$4.7 M
WADDELL TR B	BLACKBEARD OPERATING, LLC	$4.6 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$4.5 M
JUDKINS GAS UNIT I	FORMENTERA OPERATIONS LLC	$4.5 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$3.9 M
LEA, KATIE W. A/C 5	FORMENTERA OPERATIONS LLC	$3.8 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$3.8 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$3.7 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$3.7 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$3.6 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$3.5 M
SAND HILLS JUDKINS UNIT	FORMENTERA OPERATIONS LLC	$3.5 M
WADDELL TR I	BLACKBEARD OPERATING, LLC	$3.5 M
WADDELL TR B	BLACKBEARD OPERATING, LLC	$3.4 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$3.4 M
BARNSLEY -B- JUDKINS GAS UNIT	CITATION OIL & GAS CORP.	$3.4 M
WADDELL TR B	BLACKBEARD OPERATING, LLC	$3.4 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$3.4 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$3.4 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$3.3 M
WADDELL TR I	BLACKBEARD OPERATING, LLC	$3.2 M
WADDELL TR B	BLACKBEARD OPERATING, LLC	$3.2 M
SAND HILLS JUDKINS UNIT	FORMENTERA OPERATIONS LLC	$3.2 M
WADDELL TR I	BLACKBEARD OPERATING, LLC	$3.1 M
TUBB, J. B. A/C 1	FORMENTERA OPERATIONS LLC	$3.0 M
WADDELL, W.N. ET AL	BLACKBEARD OPERATING, LLC	$2.9 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.9 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$2.9 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.8 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.8 M
WADDELL TR B	BLACKBEARD OPERATING, LLC	$2.7 M
WADDELL, W. N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$2.7 M
SAND HILLS JUDKINS UNIT	FORMENTERA OPERATIONS LLC	$2.7 M
CONOCO-BARNSLEY	PETEX	$2.7 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.6 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.6 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.6 M
REIDLAND STATE	MILLWEE OIL, INC.	$2.6 M
WADDELL TR AB 2J2	BLACKBEARD OPERATING, LLC	$2.6 M
TUBB, J. B. A/C 1	FORMENTERA OPERATIONS LLC	$2.6 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.5 M
TUBB, J. B. -A-	RING ENERGY, INC.	$2.5 M
WADDELL, W. N. ET AL	BLACKBEARD OPERATING, LLC	$2.5 M
TUBB, J. B. -A-	RING ENERGY, INC.	$2.4 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.4 M
BARNSLEY, M. L. "A"	EXTEX OPERATING COMPANY	$2.4 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$2.4 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.4 M
JUDKINS GAS UNIT #3	FORMENTERA OPERATIONS LLC	$2.4 M
JUDKINS GAS UNIT #2	FORMENTERA OPERATIONS LLC	$2.3 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.3 M
TUBB, J. B. -A-	RING ENERGY, INC.	$2.3 M
TUBB, J. B. -A-	RING ENERGY, INC.	$2.2 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.2 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.2 M
WADDELL, W.N. ET AL	BLACKBEARD OPERATING, LLC	$2.2 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$2.2 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.2 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.1 M
WADDELL, W. N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$2.1 M
SAND HILLS JUDKINS UNIT	VANGUARD OPERATING, LLC	$2.1 M
TUBB, J. B. A/C 1	FORMENTERA OPERATIONS LLC	$2.1 M
JUDKINS GAS UNIT II	FORMENTERA OPERATIONS LLC	$2.1 M
BARNSLEY, M. L.	CITATION OIL & GAS CORP.	$2.1 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.1 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$2.1 M
TUBB, J. B. A/C 1	FORMENTERA OPERATIONS LLC	$2.1 M
WADDELL, W.N. ET AL	BLACKBEARD OPERATING, LLC	$2.1 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.0 M
WADDELL TR AD1 7J	BLACKBEARD OPERATING, LLC	$2.0 M
JUDKINS GAS UNIT II	FORMENTERA OPERATIONS LLC	$2.0 M
TUBB, J. B. A/C 2	FORMENTERA OPERATIONS LLC	$2.0 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$2.0 M
TUBB, J. B. A/C 1	FORMENTERA OPERATIONS LLC	$2.0 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.9 M
WADDELL TR B	BLACKBEARD OPERATING, LLC	$1.9 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.9 M
TUBB, J. B. -A-	RING ENERGY, INC.	$1.9 M
TUBB, J. B. "B" TR. A	WALSH & WATTS, INC.	$1.9 M
JUDKINS GAS UNIT II	FORMENTERA OPERATIONS LLC	$1.9 M
TUBB, J. B. -A-	RING ENERGY, INC.	$1.9 M
JUDKINS GAS UNIT II	FORMENTERA OPERATIONS LLC	$1.9 M
TUBB, J.B. "B"	RING ENERGY, INC.	$1.8 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.8 M
WADDELL TR I	BLACKBEARD OPERATING, LLC	$1.8 M
BARNSLEY, M. L. "C"	EXTEX OPERATING COMPANY	$1.8 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$1.8 M
FURR-TUBB	BAKER OPERATING, INC.	$1.8 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$1.8 M
BARNSLEY, M. L. "A"	EXTEX OPERATING COMPANY	$1.8 M
JUDKINS GAS UNIT II	FORMENTERA OPERATIONS LLC	$1.8 M
ATLANTIC STATE	MILLWEE OIL, INC.	$1.7 M
TUBB -A-	MILLWEE OIL, INC.	$1.7 M
JUDKINS GAS UNIT III	FORMENTERA OPERATIONS LLC	$1.7 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.7 M
TUBB, J. B. -A-	RING ENERGY, INC.	$1.7 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.7 M
TUBB, J. B. -A-	RING ENERGY, INC.	$1.7 M
SAND HILLS JUDKINS UNIT	FORMENTERA OPERATIONS LLC	$1.7 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.6 M
JUDKINS GAS UNIT I	FORMENTERA OPERATIONS LLC	$1.6 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.6 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.6 M
TUBB, J. B., A/C 1	FORMENTERA OPERATIONS LLC	$1.6 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.6 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.6 M
TUBB, J. B. "B"	FORMENTERA OPERATIONS LLC	$1.6 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.6 M
JUDKINS GAS UNIT #2	FORMENTERA OPERATIONS LLC	$1.6 M
BARNSLEY -D-	CITATION OIL & GAS CORP.	$1.6 M
WADDELL TR B	BLACKBEARD OPERATING, LLC	$1.6 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.6 M
TUBB, J. B. -A-	RING ENERGY, INC.	$1.5 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.5 M
JUDKINS GAS UNIT III	FORMENTERA OPERATIONS LLC	$1.5 M
BARNSLEY, M. L. "B"	EXTEX OPERATING COMPANY	$1.5 M
TUBB, J. B. C	FORMENTERA OPERATIONS LLC	$1.5 M
JUDKINS GAS UNIT II	FORMENTERA OPERATIONS LLC	$1.5 M
J B TUBB F	FORMENTERA OPERATIONS LLC	$1.5 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.5 M
WADDELL TR I	BLACKBEARD OPERATING, LLC	$1.5 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.5 M
JUDKINS GAS UNIT I	FORMENTERA OPERATIONS LLC	$1.5 M
TUBB, J. B. A/C 1	FORMENTERA OPERATIONS LLC	$1.5 M
TUBB, J. B. -B-	RING ENERGY, INC.	$1.5 M
SAND HILLS JUDKINS UNIT	VANGUARD OPERATING, LLC	$1.4 M
WADDELL, W.N. ET AL	BLACKBEARD OPERATING, LLC	$1.4 M
TUBB, J. B. A/C 1	FORMENTERA OPERATIONS LLC	$1.4 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$1.4 M
TUBB, J. B. -C-	FORMENTERA OPERATIONS LLC	$1.4 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.4 M
MCKNIGHT, M.B.	HEIFER PRODUCTION COMPANY LLC	$1.4 M
WADDELL, W. N. ET AL	BLACKBEARD OPERATING, LLC	$1.4 M
BARNSLEY -2-	EXTEX OPERATING COMPANY	$1.3 M
WADDELL TR I	BLACKBEARD OPERATING, LLC	$1.3 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.3 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.3 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.3 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.3 M
TUBB, J. B. C	FORMENTERA OPERATIONS LLC	$1.3 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$1.3 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.3 M
TUBB -A-	MILLWEE OIL, INC.	$1.3 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.3 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.2 M
TUBB, J. B. A/C 1	FORMENTERA OPERATIONS LLC	$1.2 M
TUBB, J. B. A/C 1	FORMENTERA OPERATIONS LLC	$1.2 M
BARNSLEY -B- JUDKINS GAS UNIT	CITATION OIL & GAS CORP.	$1.2 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.2 M
TUBB, J.B."DJ"	FORMENTERA OPERATIONS LLC	$1.2 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.2 M
JUDKINS GAS UNIT III	FORMENTERA OPERATIONS LLC	$1.2 M
WADDELL, W. N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$1.2 M
TUBB, J. B. C	FORMENTERA OPERATIONS LLC	$1.2 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$1.2 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$1.2 M
WADDELL TR I	BLACKBEARD OPERATING, LLC	$1.2 M
BARNSLEY -B-	FLAT TOP OPERATING, LLC	$1.2 M
TUBB, J B A/C 1	FORMENTERA OPERATIONS LLC	$1.2 M
TUBB, J. B. A/C 1	FORMENTERA OPERATIONS LLC	$1.2 M
TUBB, J. B., ET AL TR. -C-	RING ENERGY, INC.	$1.2 M
JUDKINS GAS UNIT II	FORMENTERA OPERATIONS LLC	$1.1 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.1 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.1 M
MCLELLAN, C. S. ETAL	WIND RIVER ENERGY, INC.	$1.1 M
WADDELL, W.N. ET AL	BURLINGTON RES O & G CO-MIDLAND	$1.1 M
JUDKINS GAS UNIT I	FORMENTERA OPERATIONS LLC	$1.1 M
MCKNIGHT, M. B. "C"	BLACKBEARD OPERATING, LLC	$1.1 M
WADDELL TR A	BLACKBEARD OPERATING, LLC	$1.1 M
TUBB, J. B. A/C 1	APACHE CORPORATION	$1.1 M
LEA, P. J. -B-	RICHLAND RESOURCES CORPORATION	$1.1 M
TUBB, J. B. -19-	DACO, INC.	$1.1 M
TUBB, J. B. A/C 1	FORMENTERA OPERATIONS LLC	$1.1 M
TUBB, J. B. -A-	RING ENERGY, INC.	$1.1 M

Field number 80473248, from the Railroad Commission's field register. The register's own index resolves 452 leases and 1,103 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.