Welch-Cox

Oil & Gas Property in Martin County, TX

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Property Summary

Key data points for Welch-Cox

County	Martin County, TX
Operator	PIONEER NATURAL RES. USA, INC.
Production Dates	Jan 2023 - Oct 2025
Total Oil Production	5,571,395 BBLs
Total Gas Production	11,001,691 MCF
Recent Oil Production	74,327 BBLs in Sep 2025
Recent Gas Production	323,520 MCF in Sep 2025
Wells on Property	20

Our Valuation Estimates for Welch-Cox

ShaleAssessment™

Not Available

MarketMultiple™

$11,384,120 **

* Assessment based on future expected revenue
** Based on a 36 month multiple of average monthly estimated revenue

Based on a decimal interest

Welch-Cox Production Graph

Aggregated production of all wells and leases associated with this property

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to oil and gas production for Welch-Cox
from Jan 2023 to Oct 2025

Wells on Welch-Cox

API #	Well Name	Operator	Status	County	Est. Daily Oil Prod.	Est. Daily Gas Prod.	Est. Daily Water Prod.	Latitude	Longitude
API #	Well Name	Operator	Status	County	Est. Daily Oil Prod.	Est. Daily Gas Prod.	Est. Daily Water Prod.	Latitude	Longitude
42-317-43541	WELCH-COX W39K 211H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.260190	-101.947827
42-317-43542	WELCH-COX W39L 212H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.260188	-101.947717
42-317-43543	WELCH-COX W39F 206H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.259118	-101.947414
42-317-43544	WELCH-COX W39M 213H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.260210	-101.947623
42-317-43545	WELCH-COX W39G 207H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.259140	-101.947321
42-317-43546	WELCH-COX E39W 323H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.260903	-101.939471
42-317-43547	WELCH-COX E39D 304H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.262048	-101.939455
42-317-43549	WELCH-COX E39V 322H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.260882	-101.939564
42-317-43553	WELCH-COX E39U 321H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.260861	-101.939659
42-317-43555	WELCH-COX E39C 303H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.262004	-101.939642
42-317-43556	WELCH-COX W39N 214H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.260232	-101.947530
42-317-43557	WELCH-COX W39O 215H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.260255	-101.947436
42-317-43558	WELCH-COX W39I 209H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.259185	-101.947134
42-317-43559	WELCH-COX W39P 216H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.260277	-101.947343
42-317-43561	WELCH-COX W39J 210H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.259207	-101.947040
42-317-43563	WELCH-COX W39H 208H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.259163	-101.947227
42-317-43566	WELCH-COX E39A 301H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.261961	-101.939829
42-317-43567	WELCH-COX E39S 319H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.260817	-101.939845
42-317-43568	WELCH-COX E39T 320H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.260839	-101.939752
42-317-43569	WELCH-COX E39B 302H	PIONEER NATURAL RES. USA, INC.	Producing	Martin County, TX				32.261983	-101.939736

Leases included in Welch-Cox

Lease #	Lease Name	Operator	County	Monthly Oil Prod.	Monthly Gas Prod.
Lease #	Lease Name	Operator	County	Monthly Oil Prod.	Monthly Gas Prod.
08-58342	WELCH-COX W39P	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-58399	WELCH-COX W39O	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-58498	WELCH-COX W39F	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-58499	WELCH-COX W39M	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-58500	WELCH-COX W39K	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-58501	WELCH-COX W39L	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-58584	WELCH-COX W39H	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-58702	WELCH-COX W39J	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-58731	WELCH-COX W39N	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-58752	WELCH-COX W39I	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-58834	WELCH-COX W39G	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-59823	WELCH-COX E39W	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-59855	WELCH-COX E39B	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-59867	WELCH-COX E39U	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-59912	WELCH-COX E39D	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-59913	WELCH-COX E39S	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-59942	WELCH-COX E39C	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-60093	WELCH-COX E39A	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-60103	WELCH-COX E39V	PIONEER NATURAL RES. USA, INC.	Martin County, TX
08-60106	WELCH-COX E39T	PIONEER NATURAL RES. USA, INC.	Martin County, TX

Nearby Properties

These are the closest 20 properties to the Welch-Cox property.

Property Name	Location	Oil Prod.	Gas Prod.	Prod. Period
Cox Kenneth	Martin County, TX	0 BBLs	0 MCF	Feb 2024
Cox, Glen	Martin County, TX	0 BBLs	0 MCF	Sep 2023
Epley	Martin County, TX	28,462 BBLs	264,232 MCF	Oct 2025
Epley Lenorah	Martin County, TX	0 BBLs	0 MCF	Feb 2024
Epley-Rogers 43	Martin County, TX	50,590 BBLs	261,540 MCF	Oct 2025
Georgia 39	Martin County, TX	329 BBLs	4,002 MCF	Oct 2025
Gunsmoke 1-40	Martin County, TX	8,417 BBLs	55,551 MCF	Oct 2025
Gunsmoke 40-1	Martin County, TX	9,993 BBLs	99,099 MCF	Oct 2025
Inez, Woody	Martin County, TX	0 BBLs	0 MCF	May 2021
Open Range 28-29	Martin County, TX	88,497 BBLs	413,984 MCF	Oct 2025
Quattle-Rogers 6	Martin County, TX	33,335 BBLs	183,956 MCF	Oct 2025
Quattlebaum	Martin County, TX	0 BBLs	0 MCF	Oct 2025
Rogers	Martin County, TX	0 BBLs	0 MCF	Nov 2024
Sabine 39	Martin County, TX	468 BBLs	2,989 MCF	Oct 2025
Shortes	Martin County, TX	0 BBLs	0 MCF	Sep 2023
Silverado 40-1	Martin County, TX	25,201 BBLs	177,292 MCF	Oct 2025
Welch	Martin County, TX	1,796 BBLs	20,198 MCF	Oct 2025
Woody	Martin County, TX	83,496 BBLs	500,022 MCF	Oct 2025
Woody-Ho	Martin County, TX	20,344 BBLs	135,145 MCF	Oct 2025
Woody-McMorries 31	Martin County, TX	8,218 BBLs	32,219 MCF	Oct 2025

Companies in the Area

These are the closest 20 companies operating near the Welch-Cox property.

Company Name
Brown Tom Inc
Concho Resources Inc.
Cox, John L.
Diamondback E&P LLC
Endeavor Energy Resources, LP
Henry Petroleum Corp.
JM Cox Resources LP
Kirkpatrick Oil Company
MGF Oil Corporation
Odessa Exploration, Inc.
Ovintiv USA Inc.
Oxyrock Operating, LLC
Parker & Parsley Development Co.
Pentex Operating Company
Pioneer Natural Res. USA, Inc.
R K Petroleum Corp.
Reliance Energy, Inc.
Santa Fe Energy Resources, Inc.
Stephens, Autry C.
Terrace Petroleum Corporation

Frac'ing activity on Welch-Cox

API #	Well Name	Start Date	End Date	Vertical Depth	Total Water Volume
API #	Well Name	Start Date	End Date	Vertical Depth	Total Water Volume
42-317-43541	Welch Cox W39K 211H
42-317-43542	Welch Cox W39L 212H
42-317-43543	Welch-Cox W39F 206H
42-317-43544	Welch Cox W39M 213H
42-317-43545	Welch-Cox W39G 207H
42-317-43546	Welch-Cox E39W 323H
42-317-43547	WELCH-COX E39D 304H
42-317-43549	Welch-Cox E39V 322H
42-317-43553	Welch-Cox E39U 321H
42-317-43555	WELCH-COX E39C 303H
42-317-43556	Welch Cox W39N 214H
42-317-43557	Welch Cox W39O 215H
42-317-43558	Welch-Cox W39I 209H
42-317-43559	Welch Cox W39P 216H
42-317-43561	Welch-Cox W39J 210H
42-317-43563	Welch-Cox W39H 208H
42-317-43566	WELCH-COX E39A 301H
42-317-43567	Welch-Cox E39S 319H
42-317-43568	Welch-Cox E39T 320H
42-317-43569	WELCH-COX E39B 302H

Owners of Welch-Cox

Royalty Ownership data is obtained from public records

Year	Owner	Property Name	Operator
2025	PIONEER NATURAL RES USA-WI	WELCH-COX E39B	PIONEER NAT RES USA
2025	PIONEER NATURAL RES USA-WI	WELCH-COX W39K	PIONEER NAT RES USA
2025	PIONEER NATURAL RES (WI)	WELCH-COX W39P	PIONEER NAT RES USA
2025	PIONEER NATURAL RES USA-WI	WELCH-COX E39U	PIONEER NAT RES USA
2025	PIONEER NATURAL RES USA-WI	WELCH-COX W39G	PIONEER NAT RES USA
2025	PIONEER NATURAL RES USA-WI	WELCH-COX W39F	PIONEER NAT RES USA
2025	PIONEER NATURAL RES USA-WI	WELCH-COX W39J	PIONEER NAT RES USA
2025	PIONEER NATURAL RES USA-WI	WELCH-COX E39T	PIONEER NAT RES USA
Displaying 8 of 1767 Owners -- Full Ownership Data Available for Subscribers Only

Oil & Gas Sales on Welch-Cox

Lease #	Lease Name	Reporting Period	Product	Volume	Value	Gross Price	Purchaser	Producer
Lease #	Lease Name	Reporting Period	Product	Oil Volume	Oil Value	Calculated Oil Price	Purchaser	Producer
08-58342	WELCH-COX W39P	Apr 2025					ENERGY TRANSFER CRUDE MARKETING LLC	PIONEER NATURAL RESOURCES USA, INC.
08-58342	WELCH-COX W39P	Apr 2025					PRODUCTION WASTE SOLUTIONS, LLC	PIONEER WATER MANAGEMENT LLC
08-58342	WELCH-COX W39P	Apr 2025					ACE GATHERING, INC.	PIONEER WATER MANAGEMENT LLC
08-58399	WELCH-COX W39O	Apr 2025					ENERGY TRANSFER CRUDE MARKETING LLC	PIONEER NATURAL RESOURCES USA, INC.
08-58399	WELCH-COX W39O	Apr 2025					PRODUCTION WASTE SOLUTIONS, LLC	PIONEER WATER MANAGEMENT LLC
08-58399	WELCH-COX W39O	Apr 2025					ACE GATHERING, INC.	PIONEER WATER MANAGEMENT LLC
08-58498	WELCH-COX W39F	Apr 2025					ENERGY TRANSFER CRUDE MARKETING LLC	PIONEER NATURAL RESOURCES USA, INC.
08-58498	WELCH-COX W39F	Apr 2025					PRODUCTION WASTE SOLUTIONS, LLC	PIONEER WATER MANAGEMENT LLC
08-58498	WELCH-COX W39F	Apr 2025					ACE GATHERING, INC.	PIONEER WATER MANAGEMENT LLC
08-58499	WELCH-COX W39M	Apr 2025					ENERGY TRANSFER CRUDE MARKETING LLC	PIONEER NATURAL RESOURCES USA, INC.
08-58499	WELCH-COX W39M	Apr 2025					PRODUCTION WASTE SOLUTIONS, LLC	PIONEER WATER MANAGEMENT LLC
08-58499	WELCH-COX W39M	Apr 2025					ACE GATHERING, INC.	PIONEER WATER MANAGEMENT LLC
08-58500	WELCH-COX W39K	Apr 2025					ENERGY TRANSFER CRUDE MARKETING LLC	PIONEER NATURAL RESOURCES USA, INC.
08-58500	WELCH-COX W39K	Apr 2025					PRODUCTION WASTE SOLUTIONS, LLC	PIONEER WATER MANAGEMENT LLC
08-58500	WELCH-COX W39K	Apr 2025					ACE GATHERING, INC.	PIONEER WATER MANAGEMENT LLC
08-58501	WELCH-COX W39L	Apr 2025					ENERGY TRANSFER CRUDE MARKETING LLC	PIONEER NATURAL RESOURCES USA, INC.
08-58501	WELCH-COX W39L	Apr 2025					PRODUCTION WASTE SOLUTIONS, LLC	PIONEER WATER MANAGEMENT LLC
08-58584	WELCH-COX W39H	Apr 2025					ENERGY TRANSFER CRUDE MARKETING LLC	PIONEER NATURAL RESOURCES USA, INC.
08-58584	WELCH-COX W39H	Apr 2025					PRODUCTION WASTE SOLUTIONS, LLC	PIONEER WATER MANAGEMENT LLC
08-58702	WELCH-COX W39J	Apr 2025					ENERGY TRANSFER CRUDE MARKETING LLC	PIONEER NATURAL RESOURCES USA, INC.
08-58702	WELCH-COX W39J	Apr 2025					PRODUCTION WASTE SOLUTIONS, LLC	PIONEER WATER MANAGEMENT LLC
08-58702	WELCH-COX W39J	Apr 2025					ACE GATHERING, INC.	PIONEER WATER MANAGEMENT LLC
08-58731	WELCH-COX W39N	Apr 2025					ENERGY TRANSFER CRUDE MARKETING LLC	PIONEER NATURAL RESOURCES USA, INC.
08-58731	WELCH-COX W39N	Apr 2025					PRODUCTION WASTE SOLUTIONS, LLC	PIONEER WATER MANAGEMENT LLC
08-58731	WELCH-COX W39N	Apr 2025					ACE GATHERING, INC.	PIONEER WATER MANAGEMENT LLC