RICHTER, LOUIS

Oil // district 10 // lease#36070

op: VANGUARD OPERATING, LLC

cum_oil

413k BBL

cum_gas

0 MCF

wells

4

production

1999-08 — 2026-03

peak_month

2000-04

-- production_history

cum_oil: 412,779 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,879 BBL/mo

Di (annual)

13.7%

b-factor

0.2

EUR

409,995 BBL

R-squared

0.727

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
79MR OIL COMPANY39,5002013-03-14
76MR OIL COMPANY49,5001999-09-27
77MR OIL COMPANY39,5001999-08-26
33MR OIL COMPANY36,5001999-08-09
EOF // data source: Texas Railroad Commission // 2026