O'BANION

Oil // district 6 // lease#12353

op: WINCHESTER PRODUCTION COMPANY

cum_oil

6k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2008-12

peak_month

1993-01

-- production_history

cum_oil: 5,795 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

103 BBL/mo

Di (annual)

29.8%

b-factor

0.7

EUR

8,926 BBL

R-squared

0.549

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1WINCHESTER PRODUCTION COMPANY26,7002007-05-18
EOF // data source: Texas Railroad Commission // 2026