ACKERLY (DEAN SAND), District 8A, 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

216

with a page here

Operators

Value, all time

$905.2 M

62% of the register's 350

Discovered

1954-06-29

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 216 leases in this field that have a page here — 62% of the register's 350 — 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	240	141	205,265 bbl	75,322 mcfcasinghead	63,372,613 bblsince discovery
Gas	1	0	0 mcf	0 bblcondensate	3,026 mcfsince 1970

The discovery well's oil measured 38.0° API gravity, perforated at 8,172 ft.

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	2017-01-01	550 ft	900 ft	80	3,200 ft
Gas	O	2017-01-01	550 ft	900 ft	40	99,999 ft
Oil	B	2017-01-24	550 ft	900 ft	80	3,200 ft
Oil	O	2017-01-24	550 ft	900 ft	40	99,999 ft

Commission remarks: RULES.

Counties

Dawson County Martin 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 216 leases, by the value we compute. Every one of them is in the sitemap.

Lease	Operator	Value
EAST ACKERLY DEAN UNIT	MULE KICK OPERATING LLC	$309.6 M
ACKERLY /DEAN/ FIELD UNIT	MULE KICK OPERATING LLC	$218.0 M
NORTHEAST ACKERLY DEAN UNIT	TEXLAND PETROLEUM, L.P.	$61.7 M
BECKMEYER, F. W.	MULE KICK OPERATING LLC	$9.8 M
COLEMAN "B"	QP, INC.	$8.7 M
MOORE, B. F.	DIAMONDBACK E&P LLC	$7.9 M
BOWLIN, M. Y.	HIBERNIA RESOURCES IV, LLC	$7.8 M
WALLACE, T. L.	LPR ENERGY, LLC	$7.6 M
HUDDLE	BEACH EXPLORATION, INC.	$6.5 M
KILGORE, R.	IKE OPERATING, LLC	$5.7 M
ETHEREDGE	LPR ENERGY, LLC	$5.7 M
DYER, M. E.	DIAMONDBACK E&P LLC	$5.4 M
OAKS	DIAMONDBACK E&P LLC	$5.1 M
CLUCK	PETROPLEX ENERGY INC.	$5.1 M
BODINE, L. C.	BEACH EXPLORATION, INC.	$5.0 M
BECKHAM, W. J.	QP, INC.	$4.1 M
JEFFCOAT	DIAMONDBACK E&P LLC	$4.1 M
BECKHAM "6"	MINERAL TECHNOLOGIES, INC.	$4.0 M
DYER, M.E.	LPR ENERGY, LLC	$4.0 M
MULLINS "12"	DIAMONDBACK E&P LLC	$4.0 M
KOSLAN	IKE OPERATING, LLC	$3.7 M
GREEN, R. J. ET AL	IKE OPERATING, LLC	$3.7 M
CARMICHAEL, D.	COASTAL PLAINS ENERGY, INC.	$3.6 M
HALE	DIAMONDBACK E&P LLC	$3.6 M
CAVE, E. C.	COASTAL PLAINS ENERGY, INC.	$3.5 M
DYER, M. E.	SOUTHWEST ROYALTIES, INC.	$3.4 M
MAYFIELD, H. C.	COASTAL PLAINS ENERGY, INC.	$3.4 M
BROWN, A. D.	DIAMONDBACK E&P LLC	$3.3 M
HAMIL "D"	LPR ENERGY, LLC	$3.3 M
MCCRARY, J. O.	COASTAL PLAINS ENERGY, INC.	$3.2 M
BROWN-SLAUGHTER	LPR ENERGY, LLC	$3.1 M
BOND	DIAMONDBACK E&P LLC	$3.0 M
BARKOWSKY UNIT	DIAMONDBACK E&P LLC	$2.9 M
DAVENPORT	DIAMONDBACK E&P LLC	$2.9 M
GRAVES	LPR ENERGY, LLC	$2.8 M
COX, THELMA	MAGNUM ENGINEERING COMPANY	$2.7 M
BURNS, LUCILLE	XTO ENERGY INC.	$2.7 M
GRAVES "A"	JM COX RESOURCES, L.P.	$2.7 M
MOTLEY, G. B. "A"	IKE OPERATING, LLC	$2.7 M
HORNE	BIRCH OPERATIONS, INC.	$2.7 M
DAVIS	DIAMONDBACK E&P LLC	$2.6 M
KOGER	DIAMONDBACK E&P LLC	$2.6 M
GRANTHAM	DIAMONDBACK E&P LLC	$2.5 M
MAYFIELD, R. P. "B"	COASTAL PLAINS ENERGY, INC.	$2.5 M
DAVID	DIAMONDBACK E&P LLC	$2.5 M
SHORTES - 33	ENDEAVOR ENERGY RESOURCES L.P.	$2.5 M
ADAMS "A"	DIAMONDBACK E&P LLC	$2.5 M
HAMBRICK	DIAMONDBACK E&P LLC	$2.4 M
DOSIER	DISCOVERY OPERATING, INC.	$2.4 M
BECKMEYER	LEGACY RESERVES OPERATING LP	$2.3 M
BILLINGSLEY "A"	DIAMONDBACK E&P LLC	$2.3 M
HUSE, R. A.	MULE KICK OPERATING LLC	$2.2 M
LANGHAM	DIAMONDBACK E&P LLC	$2.2 M
MGF-SMITH "C"	DISCOVERY OPERATING, INC.	$2.2 M
PITTS	ROCK FISH OPERATING LLC	$2.2 M
SMITH, C. M.	SOUTHWEST ROYALTIES, INC.	$2.2 M
DYER, BONNIE	SOUTHWEST ROYALTIES, INC.	$2.1 M
BECKMEYER	MINERAL TECHNOLOGIES, INC.	$2.1 M
STOKES	DIAMONDBACK E&P LLC	$2.1 M
SHEPARD, BONNIE	DIAMONDBACK E&P LLC	$2.1 M
ADAMS	DIAMONDBACK E&P LLC	$2.1 M
MCCRARY, J. O. "6"	MINERAL TECHNOLOGIES, INC.	$2.1 M
DYER	DIAMONDBACK E&P LLC	$2.0 M
MULLINS, BERTHA D.	DIAMONDBACK E&P LLC	$2.0 M
REESE, J. O.	SOUTHWEST ROYALTIES, INC.	$2.0 M
COLEMAN "D"	QP, INC.	$1.9 M
BURNS	DIAMONDBACK E&P LLC	$1.9 M
KIGER, D. B.	SOUTHWEST ROYALTIES, INC.	$1.9 M
STOKES	DIAMONDBACK E&P LLC	$1.8 M
COLEMAN "A"	QP, INC.	$1.7 M
BOWLIN	DISCOVERY OPERATING, INC.	$1.7 M
DYER, WANDA	DIAMONDBACK E&P LLC	$1.6 M
STOKES "A"	DIAMONDBACK E&P LLC	$1.6 M
HALE, VIOLA	PIONEER NATURAL RES. USA, INC.	$1.6 M
BURNS, L. D.	COASTAL PLAINS ENERGY, INC.	$1.6 M
HORTON, T. H.	DIAMONDBACK E&P LLC	$1.6 M
MCCRARY, J. O.	SOUTHWEST ROYALTIES, INC.	$1.6 M
CAVE, F. D. "B"	COASTAL PLAINS ENERGY, INC.	$1.6 M
KING, H. W.	IKE OPERATING, LLC	$1.6 M
KOGER "A"	CROWNQUEST OPERATING, LLC	$1.6 M
BOWLIN, M. Y. "B"	LEGACY RESERVES OPERATING LP	$1.5 M
ANDERSON	OVINTIV USA INC.	$1.5 M
DAVIS, THEODORE	IKE OPERATING, LLC	$1.5 M
PERRY	OVINTIV USA INC.	$1.5 M
RADLIFF, D. "A"	MINERAL TECHNOLOGIES, INC.	$1.5 M
WALTON "46"	PIONEER NATURAL RES. USA, INC.	$1.4 M
BARKOWSKY	PED OIL CORPORATION	$1.4 M
RADLIFF, D.	MINERAL TECHNOLOGIES, INC.	$1.4 M
ADAMS	XTO ENERGY INC.	$1.4 M
CATES	MULE KICK OPERATING LLC	$1.4 M
WIGGINS	DIAMONDBACK E&P LLC	$1.4 M
KILGORE, D.	LEGACY RESERVES OPERATING LP	$1.4 M
RIETHMAYER, OTTO	QP, INC.	$1.4 M
PYLANT, ALMA	BEACH EXPLORATION, INC.	$1.4 M
DAVIS, MONROE	SM ENERGY COMPANY	$1.4 M
DAVENPORT "A"	DIAMONDBACK E&P LLC	$1.4 M
OPAL	APACHE CORPORATION	$1.3 M
REED	DIAMONDBACK E&P LLC	$1.3 M
COLEMAN-DUBOSE	MAGNUM ENGINEERING COMPANY	$1.3 M
MGF-SMITH "B"	DISCOVERY OPERATING, INC.	$1.2 M
SHERI	NEW HEIGHT ENERGY, LLC	$1.2 M
HANSON, LEE "46"	MINERAL TECHNOLOGIES, INC.	$1.2 M
WHITE	DIAMONDBACK E&P LLC	$1.2 M
ADAMS, RAY "B"	ENDEAVOR ENERGY RESOURCES L.P.	$1.2 M
CATES	MWS PRODUCING, INC.	$1.1 M
BROWN	DIAMONDBACK E&P LLC	$1.1 M
JONES UNIT 20	SMC OIL & GAS, INC.	$1.1 M
SNELL	DIAMONDBACK E&P LLC	$1.1 M
DAVIS "A"	DIAMONDBACK E&P LLC	$1.1 M
CAVE, F. D. "C"	COASTAL PLAINS ENERGY, INC.	$1.1 M
WEBB, MARY	DIAMONDBACK E&P LLC	$1.0 M
EMMONS ESTATE	COASTAL PLAINS ENERGY, INC.	$1,000 k
ALBERT TRUST	COASTAL PLAINS ENERGY, INC.	$999 k
BOWLIN	PIONEER NATURAL RES. USA, INC.	$984 k
WRIGHT, J. S.	REMUDA OPERATING COMPANY	$933 k
BARBER	DIAMONDBACK E&P LLC	$898 k
ALBERT	CROWNQUEST OPERATING, LLC	$897 k
CROCKETT	MAGNUM ENGINEERING COMPANY	$892 k
GRAVES "A"	PIONEER NATURAL RES. USA, INC.	$884 k
STOKES	MAGNUM ENGINEERING COMPANY	$876 k
KILGORE	ENDEAVOR ENERGY RESOURCES L.P.	$864 k
BURNS, G.	OVINTIV USA INC.	$774 k
JESSICA	NEW HEIGHT ENERGY, LLC	$760 k
WHITE	BEACH EXPLORATION, INC.	$757 k
WEBB ESTATE	MINERAL TECHNOLOGIES, INC.	$733 k
CATES	BIG STAR OIL & GAS, LLC	$732 k
SCHMIDT	CROWNQUEST OPERATING, LLC	$725 k
GRAVES "B"	JM COX RESOURCES, L.P.	$719 k
BURNS, D.	DIAMONDBACK E&P LLC	$717 k
SCHMIDT, DURWARD	PIONEER NATURAL RES. USA, INC.	$651 k
GREEN	MAGNUM ENGINEERING COMPANY	$622 k
BURNS, GEORGE	DIAMONDBACK E&P LLC	$618 k
BLAGRAVE	WESTERLY EXPLORATION, INC.	$607 k
SHAW	ENDEAVOR ENERGY RESOURCES L.P.	$588 k
HUNT, R. C.	SM ENERGY COMPANY	$580 k
NICHOLS	DIAMONDBACK E&P LLC	$553 k
DYER, BUDDY	ENDEAVOR ENERGY RESOURCES L.P.	$534 k
FAMBROUGH, H. G.	TRILOGY OPERATING, INC.	$522 k
SNELL, M. L.	EXCO RESOURCES, INC.	$480 k
BAKER, BUCK	CALLON PETROLEUM OPERATING CO	$475 k
MIDDLETON	BIG STAR OIL & GAS, LLC	$432 k
ZANT	MAGNUM ENGINEERING COMPANY	$424 k
DAVIS "42"	ENDEAVOR ENERGY RESOURCES L.P.	$416 k
LAUDERDALE "A"	SMC OIL & GAS, INC.	$392 k
DAVIS, M.	SM ENERGY COMPANY	$384 k
ZANT "A"	MAGNUM ENGINEERING COMPANY	$363 k
MIDDLETON	MWS PRODUCING, INC.	$344 k
PERRY 47	PERRY PRODUCING COMPANY, INC.	$335 k
ETHEREDGE, L.	HENRY PETROLEUM CORP.	$306 k
BURROW, J. H.	TACOR RESOURCES INC	$293 k
COOK	ENDEAVOR ENERGY RESOURCES L.P.	$282 k
TRICE, G. L.	HENRY PETROLEUM CORP.	$273 k
ROGERS, W. F.	COASTAL PLAINS ENERGY, INC.	$272 k
COLEMAN	MWS PRODUCING, INC.	$260 k
SHEPARD	BEACH EXPLORATION, INC.	$245 k
BODINE "A"	BEACH EXPLORATION, INC.	$242 k
WASSON	MAGNUM ENGINEERING COMPANY	$195 k
DAVIS & HALE	ENDEAVOR ENERGY RESOURCES L.P.	$183 k
SHIPLEY, TRUETT	ENERGEN RESOURCES CORPORATION	$175 k
WHITE, L. C.	ENDEAVOR ENERGY RESOURCES L.P.	$174 k
HANSON	COASTAL PLAINS ENERGY, INC.	$168 k
COLEMAN "10"	ENDEAVOR ENERGY RESOURCES L.P.	$157 k
MERINGUE "A"	DISCOVERY OPERATING, INC.	$141 k
SHORTES	PERRY PRODUCING COMPANY, INC.	$139 k
TANNER	PERRY PRODUCING COMPANY, INC.	$137 k
HALE, S. B.	BC OPERATING, INC.	$136 k
COOK	REMUDA OPERATING COMPANY	$126 k
ADAMS, RAY	ENDEAVOR ENERGY RESOURCES L.P.	$124 k
STUART, C. J.	HENRY PETROLEUM CORP.	$116 k
READ, VERNA G.	COASTAL PLAINS ENERGY, INC.	$103 k
DYER	DEVON ENERGY CORPORATION(NEVADA)	$101 k
CATES, E. G.	PERRY PRODUCING COMPANY, INC.	$99 k
SHORTES "A"	BEACH EXPLORATION, INC.	$95 k
SNELL	H & O OPERATING CO	$84 k
DYER	RANGE PRODUCTION COMPANY	$79 k
BAUER	SMITH PIPE OF ABILENE	$78 k
BLAGRAVE	TEXAS MINERAL GROUP	$70 k
BROWN, BILLY	SMITH BROS. CASING PULLERS, INC.	$70 k
DAVIS, THEODORE	SOUTHWEST ROYALTIES, INC.	$64 k
MGF-SMITH "D"	DISCOVERY OPERATING, INC.	$60 k
JOHNSON	SOUTHWEST ROYALTIES, INC.	$60 k
BURNS TRUSTEES	PERRY PRODUCING COMPANY, INC.	$55 k
MAHONEY "A"	MAGNUM ENGINEERING COMPANY	$51 k
MOTLEY, G. B.	PARKER & PARSLEY DEVELOPMENT CO.	$47 k
COLEMAN "C"	ELAM, JACK G., INC.	$43 k
DYER "D"	SOUTHWEST ROYALTIES, INC.	$41 k
MOTLEY, G. B.	ENERGEN RESOURCES CORPORATION	$34 k
STREIT, MARTHA	BRAZOS PETROLEUM, INC.	$31 k
SHORTES	BEACH EXPLORATION, INC.	$28 k
MIDDLETON "A"	DISCOVERY OPERATING, INC.	$24 k
LENTZ	BRAZOS PETROLEUM, INC.	$23 k
LAUDERDALE	DISCOVERY OPERATING, INC.	$22 k
HALE, J. E. ET AL	MWS PRODUCING, INC.	$21 k
LANGHAM	DIAMONDBACK E&P LLC	$18 k
BROWN	HPC OPERATING, INC.	$16 k
MERINGUE	DISCOVERY OPERATING, INC.	$16 k
MARSHALL	KAISER-FRANCIS OIL COMPANY	$10 k
BURNS TRUSTEE "A"	MAGNUM ENGINEERING COMPANY	$8 k
ZANT "B"	MAGNUM ENGINEERING COMPANY	$7 k
REESE "A"	SMITH BROS. CASING PULLERS, INC.	$6 k

Field number 00448200, from the Railroad Commission's field register. The register's own index resolves 350 leases and 843 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.