UMPHRESS,C. F. ET AL

Oil // district 10 // lease#39361

op: RRIG EXPLORATION, LLC

cum_oil

19k BBL

cum_gas

0 MCF

wells

2

production

2009-02 — 2026-03

peak_month

2009-05

-- production_history

cum_oil: 18,713 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,142 BBL/mo

Di (annual)

182.1%

b-factor

0.6

EUR

17,528 BBL

R-squared

0.814

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2MERIDIAN OIL INC.29,4362009-03-23
1MERIDIAN OIL INC.29,5002009-03-13
EOF // data source: Texas Railroad Commission // 2026