DANA

Oil // district 3 // lease#20755

op: U. S. OPERATING, INC.

cum_oil

8k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2010-08

peak_month

1997-01

-- production_history

cum_oil: 7,979 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

577 BBL/mo

Di (annual)

760.8%

b-factor

1.2

EUR

8,107 BBL

R-squared

0.769

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1U. S. OPERATING, INC.29,0002010-06-11
EOF // data source: Texas Railroad Commission // 2026