GLASSCOCK RANCH A

Oil · District 01 · Lease #9813

Operator: WINN EXPLORATION CO., INC.

Cum Oil

275k BBL

Cum Gas

1.1M MCF

casinghead

Wells

29

Production

1993-01 — 2021-07

Peak Month

1993-10

Production History

Cum Oil: 275,172 BBL Cum Gas: 1,121,014 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

7,155 BBL/mo

Di (annual)

65.4%

b-factor

0.4

EUR

214,798 BBL

R-squared

0.742

type

hyperbolic

Operator History (from monthly production reports)

2022-01 — 2024-05 TRINITY OPERATING (USG), LLC 29 mo
2010-12 — 2021-12 MATADOR PRODUCTION COMPANY 133 mo
1994-11 — 2010-11 MCDAY ENERGY CORP. 193 mo
1993-01 — 1994-10 WINN EXPLORATION CO., INC. 22 mo

Wells (29)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HTRINITY OPERATING (USG) LLC110,0002012-05-18
2HTRINITY OPERATING (USG) LLC112,0002012-04-12
12TRINITY OPERATING (USG) LLC27,0001992-11-20
31TRINITY OPERATING (USG) LLC17,0001992-11-02
25TRINITY OPERATING (USG) LLC27,0001992-10-30
23TRINITY OPERATING (USG) LLC37,0001992-10-27
28TRINITY OPERATING (USG) LLC37,0001992-10-01
37TRINITY OPERATING (USG) LLC16,5001990-12-21
5205TRINITY OPERATING (USG) LLC15,0001990-12-18
13MATADOR PRODUCTION COMPANY49,0001990-11-02
34TRINITY OPERATING (USG) LLC17,0001990-10-03
35TRINITY OPERATING (USG) LLC17,0001990-10-03
36TRINITY OPERATING (USG) LLC17,0001990-10-02
33TRINITY OPERATING (USG) LLC27,0001990-09-06
32TRINITY OPERATING (USG) LLC17,0001990-08-28
29TRINITY OPERATING (USG) LLC17,0001990-07-10
30TRINITY OPERATING (USG) LLC27,0001990-07-10
26TRINITY OPERATING (USG) LLC17,0001990-06-08
27TRINITY OPERATING (USG) LLC17,0001990-06-08
24TRINITY OPERATING (USG) LLC17,0001990-05-07
22TRINITY OPERATING (USG) LLC27,0001990-03-21
16TRINITY OPERATING (USG) LLC27,5721990-02-09
17TRINITY OPERATING (USG) LLC27,0001990-02-09
18TRINITY OPERATING (USG) LLC17,0001990-02-09
19TRINITY OPERATING (USG) LLC17,0001990-02-09
20TRINITY OPERATING (USG) LLC17,0001990-02-09
15TRINITY OPERATING (USG) LLC29,0001990-01-31
14TRINITY OPERATING (USG) LLC16,9501990-01-23
10TRINITY OPERATING (USG) LLC37,5001989-08-03