AMERICAN NATIONAL LIFE INS. CO

Oil · District 08 · Lease #31768

Operator: VANGUARD OPERATING, LLC

Cum Oil

178k BBL

Cum Gas

3.0M MCF

casinghead

Wells

8

Production

1993-01 — 2026-04

Peak Month

2010-12

Production History

Cum Oil: 177,997 BBL Cum Gas: 2,965,763 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,539 BBL/mo

Di (annual)

20.6%

b-factor

0.0

EUR

147,891 BBL

R-squared

0.871

type

exponential

Operator History (from monthly production reports)

2025-11 — 2026-07 CRESCENT ENERGY OPERATING, LLC 9 mo
2022-01 — 2025-10 CONTANGO RESOURCES, LLC 46 mo
2021-02 — 2021-12 CONTANGO RESOURCES, INC. 11 mo
2019-09 — 2021-01 GRIZZLY OP OF DELAWARE, LLC 17 mo
2015-11 — 2019-08 VANGUARD OPERATING, LLC 46 mo
2008-05 — 2015-10 EAGLE ROCK OPERATING COMPANY,LLC 90 mo
2004-08 — 2008-04 STANOLIND OPERATING CORP. 45 mo
1993-01 — 2004-07 MR OIL COMPANY 139 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
41CRESCENT ENERGY OPERATING, LLC29,3002013-03-04
44CRESCENT ENERGY OPERATING, LLC39,1002013-03-04
43CRESCENT ENERGY OPERATING, LLC39,5002010-09-01
34CRESCENT ENERGY OPERATING, LLC49,7002010-03-26
50CRESCENT ENERGY OPERATING, LLC19,2002010-01-22
48CRESCENT ENERGY OPERATING, LLC19,2002010-01-14
58CRESCENT ENERGY OPERATING, LLC29,5002009-05-12
45CRESCENT ENERGY OPERATING, LLC29,5002006-02-27