AMERICAN NATIONAL LIFE INS. CO

Oil // district 10 // lease#31768

op: VANGUARD OPERATING, LLC

cum_oil

178k BBL

cum_gas

0 MCF

wells

8

production

1993-01 — 2026-03

peak_month

2010-10

-- production_history

cum_oil: 177,815 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,400 BBL/mo

Di (annual)

19.5%

b-factor

0.0

EUR

147,837 BBL

R-squared

0.880

type

exponential

-- wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
41EAGLE ROCK OPERATING COMPANY,LLC29,3002013-03-04
44EAGLE ROCK OPERATING COMPANY,LLC39,1002013-03-04
43STANOLIND OPERATING CORP.39,5002010-09-01
34MR OIL COMPANY49,7002010-03-26
50EAGLE ROCK OPERATING COMPANY,LLC19,2002010-01-22
48EAGLE ROCK OPERATING COMPANY,LLC19,2002010-01-14
58STANOLIND OPERATING CORP.29,5002009-05-12
45STANOLIND OPERATING CORP.29,5002006-02-27
EOF // data source: Texas Railroad Commission // 2026