WILBURN, J.

Oil // district 3 // lease#177

op: UNION SEABOARD CORPORATION

fields: BARBERS HILL

cum_oil

350k BBL

cum_gas

0 MCF

wells

9

production

1993-01 — 2026-03

peak_month

2010-09

-- production_history

cum_oil: 349,950 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

9,049 BBL/mo

Di (annual)

51.2%

b-factor

0.1

EUR

235,434 BBL

R-squared

0.774

type

hyperbolic

-- wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
29HOUSTON DOMESTIC OIL COMPANY36,5002010-06-03
17ERG RESOURCES, L.L.C.25,5002010-03-19
28HOUSTON DOMESTIC OIL COMPANY16,5001977-10-19
26HOUSTON DOMESTIC OIL COMPANY17001977-07-27
1642-071-00477--------
2242-071-80835--------
2342-071-00493--------
2442-071-30538--------
2542-071-30577--------
EOF // data source: Texas Railroad Commission // 2026