GOODWYN, A.B.

Oil · District 01 · Lease #1653

Operator: TRUE ENERGY, INC.

Fields: SOMERSET

Cum Oil

15k BBL

Cum Gas

14 MCF

casinghead

Wells

16

Production

1993-01 — 2026-03

Peak Month

2003-10

Production History

Cum Oil: 14,871 BBL Cum Gas: 14 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

126 BBL/mo

Di (annual)

54.9%

b-factor

1.4

EUR

12,754 BBL

R-squared

0.374

type

hyperbolic

Operator History (from monthly production reports)

2014-04 — 2026-07 CALK OPERATING, LLC 148 mo
2011-06 — 2014-03 CALK OPERATING CO. 34 mo
2002-10 — 2011-05 OLDENBURG VENTURES, L.P. 104 mo
1994-02 — 2002-09 TRUE ENERGY, INC. 104 mo
1993-01 — 1994-01 GOODWYN, A. B. 13 mo

Wells (16)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
14CALK OPERATING, LLC12,0002013-10-26
15CALK OPERATING, LLC12,0002013-10-26
13CALK OPERATING, LLC11,9001985-09-17
12CALK OPERATING, LLC11,9001985-08-26
11CALK OPERATING, LLC11,9001985-07-26
8CALK OPERATING, LLC11,9001985-07-01
10CALK OPERATING, LLC11,9001985-06-24
9CALK OPERATING, LLC11,9001985-06-24
6CALK OPERATING, LLC11,6001985-05-17
7CALK OPERATING, LLC11,6001985-05-17
4CALK OPERATING, LLC11,9001985-04-23
5CALK OPERATING, LLC11,9001985-04-23
2CALK OPERATING, LLC11,9001985-04-02
3CALK OPERATING, LLC11,9001985-04-02
1ACALK OPERATING, LLC11,9001985-03-21
142-013-00128CALK OPERATING, LLC------