SPRABERRY (TREND AREA) R 40 EXC, 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

571

with a page here

Operators

Value, all time

$21.65 bn

98% of the register's 581

Discovered

2013-12-18

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 571 leases in this field that have a page here — 98% of the register's 581 — 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	948	693	11,481,389 bbl	118,709,190 mcfcasinghead	302,115,853 bblsince discovery
Gas	1	1	168,045 mcf	1,497 bblcondensate	168,045 mcfsince 1970

The discovery well's oil measured 49.9° API gravity, perforated at 10,605 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
Gas	B	2014-12-02	330 ft	0 ft	80	0 ft
Oil	B	2016-03-08	330 ft	0 ft	80	0 ft

Commission remarks: DESIGNATED AS UFT FIELD PER DOCKET 01-0299858

County

Midland 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 571 leases, by the value we compute. Every one of them is in the sitemap.

Lease	Operator	Value
SHACKELFORD	PIONEER NATURAL RES. USA, INC.	$723.4 M
PRESTON 5	PIONEER NATURAL RES. USA, INC.	$495.3 M
GERMANIA 45	PIONEER NATURAL RES. USA, INC.	$342.1 M
GERMANIA 42	PIONEER NATURAL RES. USA, INC.	$332.3 M
PRESTON B	PIONEER NATURAL RES. USA, INC.	$285.2 M
LILLIE MIDKIFF 5	XTO ENERGY INC.	$267.7 M
TXL 20 UNIT 1	XTO ENERGY INC.	$250.6 M
SCHROCK, W.M. 2326	APACHE CORPORATION	$230.3 M
PRESTON A	PIONEER NATURAL RES. USA, INC.	$205.0 M
TURNER H R40	PIONEER NATURAL RES. USA, INC.	$187.8 M
UL COMANCHE UNIT A4144	DIAMONDBACK E&P LLC	$183.5 M
SCHROCK, W.M. 34 DEEP	APACHE CORPORATION	$168.0 M
MIDKIFF 1	PIONEER NATURAL RES. USA, INC.	$167.0 M
DUCK POND 21910 36-25	BTA OIL PRODUCERS, LLC	$166.1 M
BULLDOG	PERMIAN DEEP ROCK OIL CO., LLC	$146.8 M
SOTO 43-7 (ALLOC-1SH)	DIAMONDBACK E&P LLC	$137.9 M
HALOGEN	OXYROCK OPERATING, LLC	$135.2 M
AVOGADRO H	OXYROCK OPERATING, LLC	$134.3 M
DICKENSON 18-7 EAST	DIAMONDBACK E&P LLC	$130.9 M
STEERS NATION MIPA	SOGC, LLC	$130.2 M
FR UNOBTANIUM 1411	OXYROCK OPERATING, LLC	$129.5 M
MOSS MIPA	SOGC, LLC	$118.0 M
COMANCHEROS 19-31 3101	XTO ENERGY INC.	$117.0 M
COMANCHEROS 19-31 3103	XTO ENERGY INC.	$114.8 M
MCCLINTIC I R40	PIONEER NATURAL RES. USA, INC.	$112.5 M
HALOGEN G	OXYROCK OPERATING, LLC	$110.2 M
WASHINGTON MIPA	SOGC, LLC	$105.0 M
WTH 21-16 A	DIAMONDBACK E&P LLC	$103.4 M
AVOGADRO	OXYROCK OPERATING, LLC	$103.0 M
HALOGEN F	OXYROCK OPERATING, LLC	$100.6 M
CHARLES MIDKIFF 38-47 4711	XTO ENERGY INC.	$97.2 M
GOODSPEED A	APACHE CORPORATION	$96.9 M
VINEYARD HZ O UNIT	DIAMONDBACK E&P LLC	$95.4 M
AMOCO-HOLT WC	DIAMONDBACK E&P LLC	$94.7 M
FR UNOBTANIUM 1411 E	OXYROCK OPERATING, LLC	$94.3 M
RIO SAN MARCOS 36-45 UNIT 1A	DIAMONDBACK E&P LLC	$92.2 M
MID-STATES WEST UNIT 37-5	PERMIAN RESOURCES OPERATING, LLC	$92.0 M
FR CATALYST E 94	OXYROCK OPERATING, LLC	$90.2 M
FR UNOBTANIUM 1411 D	OXYROCK OPERATING, LLC	$86.4 M
AVOGADRO C	OXYROCK OPERATING, LLC	$85.8 M
WTH 10-3 A	DIAMONDBACK E&P LLC	$84.9 M
COMANCHEROS 19-31 3104	XTO ENERGY INC.	$83.3 M
TXL 27 UNIT 4	XTO ENERGY INC.	$82.5 M
GOODSPEED B	APACHE CORPORATION	$81.5 M
ACTINIDE	OXYROCK OPERATING, LLC	$81.1 M
WOODY 4	COG OPERATING LLC	$79.5 M
MIDKIFF-HALFMANN 39-46 4600	XTO ENERGY INC.	$79.3 M
FR CATALYST F 94	OXYROCK OPERATING, LLC	$79.2 M
TUBB 21 L UNIT	PIONEER NATURAL RES. USA, INC.	$79.1 M
MID-STATES EAST UNIT 37-5	PERMIAN RESOURCES OPERATING, LLC	$77.5 M
TXL 27 UNIT 3	XTO ENERGY INC.	$75.6 M
FR UNOBTANIUM 1411 C	OXYROCK OPERATING, LLC	$75.5 M
COMANCHEROS 19-31 3102	XTO ENERGY INC.	$74.8 M
ORGANIC D	OXYROCK OPERATING, LLC	$74.6 M
WTH 22-15 D	DIAMONDBACK E&P LLC	$71.6 M
VALENCE E	OXYROCK OPERATING, LLC	$71.6 M
AVOGADRO E	OXYROCK OPERATING, LLC	$71.5 M
LOCKLAR-HILL 26L UNIT	PIONEER NATURAL RES. USA, INC.	$70.8 M
WTH 22-15 A	DIAMONDBACK E&P LLC	$70.6 M
MISCHIEVOUS BADGER UNIT 80-85	HIGH NOON RESOURCES, LLC	$70.1 M
GAULT 5-44 UNIT 8LS	DIAMONDBACK E&P LLC	$66.9 M
WTH 'E' 15-22	DIAMONDBACK E&P LLC	$66.8 M
G.W. GLASS B	COG OPERATING LLC	$66.2 M
ACTINIDE E	OXYROCK OPERATING, LLC	$65.8 M
WTH 21-16 C	DIAMONDBACK E&P LLC	$64.7 M
ORGANIC	OXYROCK OPERATING, LLC	$64.5 M
FASKEN H 16-21	ENDEAVOR ENERGY RESOURCES L.P.	$64.4 M
HARRIS 17-20-A	PIONEER NATURAL RES. USA, INC.	$63.1 M
WTH 21-16 H	DIAMONDBACK E&P LLC	$61.9 M
VALENCE	OXYROCK OPERATING, LLC	$61.5 M
STRAIN RANCH 13B-24B-A	PIONEER NATURAL RES. USA, INC.	$60.4 M
BANKHEAD 4-33 UNIT 2A	ENDEAVOR ENERGY RESOURCES L.P.	$60.3 M
TURNER EC43I	PIONEER NATURAL RES. USA, INC.	$60.0 M
TXL 20 UNIT 2	XTO ENERGY INC.	$58.9 M
ORGANIC C	OXYROCK OPERATING, LLC	$58.6 M
CHARLES MIDKIFF 38-47 4712	XTO ENERGY INC.	$58.3 M
MIDKIFF-HALFMANN 39-46 4607	XTO ENERGY INC.	$58.2 M
LHS RANCH ALLOCATION 4518	XTO ENERGY INC.	$58.2 M
MIDKIFF-HALFMANN 39-46 4606	XTO ENERGY INC.	$56.9 M
BRADLEY 2	DIAMONDBACK E&P LLC	$54.8 M
MIDKIFF NEN11H	PIONEER NATURAL RES. USA, INC.	$54.1 M
GERMANIA W41D	PIONEER NATURAL RES. USA, INC.	$53.4 M
PRESTON E13A	PIONEER NATURAL RES. USA, INC.	$53.0 M
FR CATALYST A 94	OXYROCK OPERATING, LLC	$52.8 M
WTH 10-3 E	DIAMONDBACK E&P LLC	$52.3 M
MIDKIFF NES11P	PIONEER NATURAL RES. USA, INC.	$52.3 M
WTH 21-16 G	DIAMONDBACK E&P LLC	$51.6 M
MOTT 14	DIAMONDBACK E&P LLC	$51.5 M
KNOX 2	DIAMONDBACK E&P LLC	$51.0 M
WTH 10-3 H	DIAMONDBACK E&P LLC	$51.0 M
KYLA C	CRESCENT ENERGY OPERATING, LLC	$50.8 M
TURNER EC43H	PIONEER NATURAL RES. USA, INC.	$50.7 M
BAUER-GOLIAD MIPA PSA	SOGC, LLC	$50.5 M
CHARLES MIDKIFF 38-47 4713	XTO ENERGY INC.	$50.4 M
WTH 'G' 15-22	DIAMONDBACK E&P LLC	$50.3 M
PRESTON E13C	PIONEER NATURAL RES. USA, INC.	$50.0 M
NAIL UNIT 1	XTO ENERGY INC.	$49.9 M
HARRIS 17-20-C	PIONEER NATURAL RES. USA, INC.	$48.9 M
WTH 'F' 15-22	DIAMONDBACK E&P LLC	$48.8 M
BIGTOOTH MAPLE	OXYROCK OPERATING, LLC	$46.8 M
WTH 10-3 D	DIAMONDBACK E&P LLC	$46.2 M
GOODSPEED DEEP A	APACHE CORPORATION	$46.1 M
ORGANIC E	OXYROCK OPERATING, LLC	$45.9 M
GOODSPEED C	APACHE CORPORATION	$45.7 M
TURNER EC43G	PIONEER NATURAL RES. USA, INC.	$45.6 M
MOTT 4	DIAMONDBACK E&P LLC	$45.5 M
TXL 11 UNIT 3	XTO ENERGY INC.	$45.5 M
LHS RANCH ALLOCATION 4516	XTO ENERGY INC.	$45.4 M
PRESTON W17B	PIONEER NATURAL RES. USA, INC.	$45.4 M
GERMANIA E41E	PIONEER NATURAL RES. USA, INC.	$45.3 M
LAFAYETTE 2	DIAMONDBACK E&P LLC	$45.2 M
LHS RANCH 27-21 ALLOCATION 2101	XTO ENERGY INC.	$45.0 M
LEO 8-5-A	PIONEER NATURAL RES. USA, INC.	$44.8 M
LHS RANCH ALLOCATION 4517	XTO ENERGY INC.	$44.5 M
MOTT 8	DIAMONDBACK E&P LLC	$44.5 M
FRANK MIDKIFF 35 ALLOCATION 3808	XTO ENERGY INC.	$44.4 M
WTH 16-21SL (ALLOC)	DIAMONDBACK E&P LLC	$44.3 M
SHACKELFORD W39D	PIONEER NATURAL RES. USA, INC.	$44.3 M
WTH 10-3 F	DIAMONDBACK E&P LLC	$44.0 M
GOODSPEED DEEP C	APACHE CORPORATION	$43.5 M
MOTT 7	DIAMONDBACK E&P LLC	$43.4 M
PEGGY A	DIAMONDBACK E&P LLC	$43.4 M
EISENHOWER	DIAMONDBACK E&P LLC	$42.9 M
GERMANIA W41B	PIONEER NATURAL RES. USA, INC.	$42.9 M
WTH 'A' 16-21SL (ALLOC)	DIAMONDBACK E&P LLC	$42.7 M
GERMANIA E41C	PIONEER NATURAL RES. USA, INC.	$42.7 M
MIDKIFF-HALFMANN 39-46 4608	XTO ENERGY INC.	$42.2 M
WTH 10-3 G	DIAMONDBACK E&P LLC	$41.8 M
FRANK MIDKIFF 35 ALLOCATION 2618	XTO ENERGY INC.	$41.8 M
WTH 'H' 15-22	DIAMONDBACK E&P LLC	$41.7 M
SHACKELFORD E40D	PIONEER NATURAL RES. USA, INC.	$41.6 M
SOTO 43-7 (ALLOC-4SH)	DIAMONDBACK E&P LLC	$41.4 M
MOTT 9	DIAMONDBACK E&P LLC	$41.4 M
WTH 21-16 F	DIAMONDBACK E&P LLC	$41.2 M
SHACKELFORD W40F	PIONEER NATURAL RES. USA, INC.	$41.2 M
MIDKIFF 1U	PIONEER NATURAL RES. USA, INC.	$41.0 M
ZOEY 9-16-H	PIONEER NATURAL RES. USA, INC.	$40.8 M
MIDKIFF NES11R	PIONEER NATURAL RES. USA, INC.	$40.8 M
SHACKELFORD W40D	PIONEER NATURAL RES. USA, INC.	$40.8 M
PRESTON E17C	PIONEER NATURAL RES. USA, INC.	$40.7 M
PRESTON E13B	PIONEER NATURAL RES. USA, INC.	$40.4 M
MOTT 15	DIAMONDBACK E&P LLC	$40.1 M
SHACKELFORD-CUNNINGHAM 9O	PIONEER NATURAL RES. USA, INC.	$40.0 M
FRANK MIDKIFF 35 ALLOCATION 3807	XTO ENERGY INC.	$40.0 M
JOHN DENNY '41-44'	PIONEER NATURAL RES. USA, INC.	$39.6 M
VLT RUGER MAGNUM UNIT	CHEVRON U. S. A. INC.	$39.1 M
SHACKELFORD E40F	PIONEER NATURAL RES. USA, INC.	$39.1 M
LHS RANCH 27-21 ALLOCATION 2103	XTO ENERGY INC.	$38.9 M
MIDKIFF NEN11E	PIONEER NATURAL RES. USA, INC.	$38.8 M
WTH 22-15 B	DIAMONDBACK E&P LLC	$38.8 M
SHACKELFORD I	PIONEER NATURAL RES. USA, INC.	$38.6 M
GERMANIA E41A	PIONEER NATURAL RES. USA, INC.	$38.5 M
BIGTOOTH MAPLE E	OXYROCK OPERATING, LLC	$38.5 M
TXL-SHACKELFORD 37I	PIONEER NATURAL RES. USA, INC.	$38.1 M
CATFISH HUNTER '12-1'	PIONEER NATURAL RES. USA, INC.	$38.1 M
MIDKIFF NEN11C	PIONEER NATURAL RES. USA, INC.	$38.0 M
PRESTON E17B	PIONEER NATURAL RES. USA, INC.	$37.9 M
FRANK MIDKIFF 35 ALLOCATION 3805	XTO ENERGY INC.	$37.9 M
PRESTON E17A	PIONEER NATURAL RES. USA, INC.	$37.9 M
PEGGY 6	DIAMONDBACK E&P LLC	$37.8 M
PEGGY 5	DIAMONDBACK E&P LLC	$37.7 M
SHACKELFORD K	PIONEER NATURAL RES. USA, INC.	$37.7 M
SHACKELFORD W40A	PIONEER NATURAL RES. USA, INC.	$37.7 M
TXL 11 UNIT 1	XTO ENERGY INC.	$37.6 M
BIGTOOTH MAPLE D	OXYROCK OPERATING, LLC	$37.2 M
MIDKIFF NES11T	PIONEER NATURAL RES. USA, INC.	$37.1 M
FLETCHER 3	DIAMONDBACK E&P LLC	$36.7 M
SHACKELFORD E40B	PIONEER NATURAL RES. USA, INC.	$36.4 M
PRESTON W17A	PIONEER NATURAL RES. USA, INC.	$36.4 M
MIDKIFF-HALFMANN 39-46 4609	XTO ENERGY INC.	$36.2 M
SHACKELFORD W31C	PIONEER NATURAL RES. USA, INC.	$36.1 M
MANOR PARK WEST LS UNIT	FASKEN OIL AND RANCH, LTD.	$35.8 M
CATFISH HUNTER 12-1	PIONEER NATURAL RES. USA, INC.	$35.5 M
LAFAYETTE	DIAMONDBACK E&P LLC	$35.5 M
MIDKIFF NEN11G	PIONEER NATURAL RES. USA, INC.	$35.2 M
MIDKIFF NES11N	PIONEER NATURAL RES. USA, INC.	$35.1 M
SHACKELFORD E	PIONEER NATURAL RES. USA, INC.	$35.1 M
LHS RANCH 27-21 ALLOCATION 2115	XTO ENERGY INC.	$35.0 M
E. T. O'DANIEL 3I	PIONEER NATURAL RES. USA, INC.	$34.7 M
SHACKELFORD W31D	PIONEER NATURAL RES. USA, INC.	$34.6 M
SHACKELFORD 33U	PIONEER NATURAL RES. USA, INC.	$34.6 M
CLARK 7	DIAMONDBACK E&P LLC	$34.6 M
GAULT 5-44 UNIT 7LS	DIAMONDBACK E&P LLC	$34.5 M
DYER-KILGORE O 25-34	PIONEER NATURAL RES. USA, INC.	$34.4 M
SHACKELFORD M	PIONEER NATURAL RES. USA, INC.	$34.3 M
LHS RANCH 27-21 ALLOCATION 2116	XTO ENERGY INC.	$34.3 M
BIGTOOTH MAPLE H	OXYROCK OPERATING, LLC	$34.3 M
VLT RUGER PREDATOR UNIT	CHEVRON U. S. A. INC.	$33.9 M
KNOX	DIAMONDBACK E&P LLC	$33.9 M
KYLA I	CRESCENT ENERGY OPERATING, LLC	$33.8 M
JOHN DENNY 41-44-F	PIONEER NATURAL RES. USA, INC.	$33.8 M
FR UNOBTANIUM 1411 CC	OXYROCK OPERATING, LLC	$33.7 M
KRAKEN 10-3 E1	DIAMONDBACK E&P LLC	$33.7 M
LHS RANCH 27-21 ALLOCATION 2102	XTO ENERGY INC.	$33.4 M
SHACKELFORD-CUNNINGHAM 9M	PIONEER NATURAL RES. USA, INC.	$33.4 M
SHACKELFORD 10T	PIONEER NATURAL RES. USA, INC.	$33.3 M
UNIVERSITY 5-38 C	OVINTIV USA INC.	$33.3 M
WTH 21-16 G1	DIAMONDBACK E&P LLC	$33.3 M
FRANK MIDKIFF 35 ALLOCATION 2617	XTO ENERGY INC.	$33.3 M
PRESTON N31O	PIONEER NATURAL RES. USA, INC.	$33.3 M

Field number 85280301, from the Railroad Commission's field register. The register's own index resolves 581 leases and 1,079 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.