CONROE, District 03, 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

140

with a page here

Operators

Value, all time

$1.78 bn

38% of the register's 372

Discovered

1931-12-31

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 140 leases in this field that have a page here — 38% of the register's 372 — 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	244	89	553,960 bbl	180,806 mcfcasinghead	744,335,525 bblsince discovery
Gas	98	15	62,862 mcf	1,855 bblcondensate	136,268,257 mcfsince 1970

The discovery well's oil measured 38.0° API gravity, perforated at 5,200 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	1997-06-01	466 ft	933 ft	20	1,500 ft
Oil	B	1997-06-01	467 ft	933 ft	20	1,500 ft

Commission remarks: LETTER 5-30-97 - RULES EFFECTIVE 6-1-97.

County

Montgomery County

Leases in this field

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

Lease	Operator	Value
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.41 bn
HOOPER, FANNIE -A-	WHEELER OPERATING CORPORATION	$24.8 M
MOODY, E.	WAPITI ENERGY, LLC	$12.0 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$11.4 M
PERRY HEIRS	WAPITI OPERATING, LLC	$11.4 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$11.3 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$9.9 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$9.7 M
HOOPER, FANNIE -A-	WHEELER OPERATING CORPORATION	$9.4 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$9.0 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$8.1 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$7.7 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$7.3 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$7.3 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$6.4 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$6.3 M
CONROE FIELD UNIT	DENBURY ONSHORE, LLC	$5.5 M
CONROE FIELD UNIT	EXXON MOBIL CORPORATION	$5.3 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$5.2 M
CONROE FIELD UNIT	DENBURY ONSHORE, LLC	$5.2 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.9 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.7 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.5 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.5 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.5 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.5 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.4 M
CONROE FIELD UNIT	DENBURY ONSHORE, LLC	$4.3 M
KEYSTONE MILLS	DIASU OIL & GAS CO., INC.	$4.3 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.3 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.3 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.2 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.2 M
CONROE FIELD UNIT	EXXON MOBIL CORPORATION	$4.1 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$4.0 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$3.9 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$3.6 M
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$3.6 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$3.6 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$3.4 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$3.2 M
CONROE FIELD UNIT	DENBURY ONSHORE, LLC	$3.1 M
CONROE FIELD UNIT	DENBURY ONSHORE, LLC	$3.0 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.9 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.9 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.8 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.8 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.7 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.7 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.6 M
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$2.6 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.5 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.5 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.3 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.3 M
CONROE FIELD UNIT	DENBURY ONSHORE, LLC	$2.3 M
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$2.2 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.2 M
CONROE FIELD UNIT	EXXON MOBIL CORPORATION	$2.2 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.1 M
CONROE FIELD UNIG	HIGHMARK ENERGY OPERATING, LLC	$2.1 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.1 M
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$2.1 M
HOOPER, FANNIE -A-	WHEELER OPERATING CORPORATION	$2.1 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$2.1 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.9 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.9 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.8 M
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$1.8 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.8 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.7 M
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$1.7 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.7 M
HOOPER, FANNIE -A-	WHEELER OPERATING CORPORATION	$1.5 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.4 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.4 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.3 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.3 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.3 M
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$1.2 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.1 M
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$1.1 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.1 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.1 M
CONROE FIELD UNIT	DENBURY ONSHORE, LLC	$1.1 M
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$1.0 M
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$986 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$955 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$948 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$846 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$833 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$786 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$781 k
CONROE FIELD UNIT	DENBURY ONSHORE, LLC	$776 k
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$760 k
MCCOMB, W. P. ET AL	DIASU OIL & GAS CO., INC.	$697 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$694 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$639 k
CONROE FIELD UNIT	DENBURY ONSHORE, LLC	$624 k
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$619 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$609 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$575 k
CONROE FIELD UNIT	DENBURY ONSHORE, LLC	$571 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$560 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$557 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$550 k
CONROE FIELD UNIT	EXXON MOBIL CORPORATION	$533 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$500 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$491 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$482 k
CONROE FIELD UNIT	DENBURY ONSHORE, LLC	$455 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$412 k
CONROE FIELD UNIT	EXXON CORP.	$365 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$347 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$309 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$306 k
CONROE FIELD UNIT	EXXON MOBIL CORPORATION	$305 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$292 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$285 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$270 k
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$266 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$249 k
CONROE FIELD UNIT	EXXON MOBIL CORPORATION	$216 k
CONROE FIELD UNIT	EXXON MOBIL CORPORATION	$200 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$181 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$139 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$133 k
MCCOMB, W. P. ETAL	DIASU OIL & GAS CO., INC.	$93 k
LEWIS, J. W. 'A'	WAPITI OPERATING, LLC	$78 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$54 k
CONROE FIELD UNIT	HIGHMARK ENERGY OPERATING, LLC	$50 k
CONROE FIELD UNIT	EXXON MOBIL CORPORATION	$48 k
HOOPER, FANNIE -A-	BROWN, H.L. OPERATING, L.L.C.	$34 k
HOOPER, FANNIE -A-	BROWN, H.L. OPERATING, L.L.C.	$25 k
CONROE FIELD UNIT	WAPITI OPERATING, LLC	$11 k
KEYSTONE MILLS	DIASU OIL & GAS CO., INC.	$4 k
HOOPER, FANNIE	HEISEY VENTURES, INC.	$4 k
HOOPER, FANNIE	HEISEY VENTURES, INC.	$25
CONROE FIELD UNIT	EXXON CORP.	—
CONROE FIELD UNIT	EXXON MOBIL CORPORATION	—

Field number 20211001, from the Railroad Commission's field register. The register's own index resolves 372 leases and 1,864 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.