ALLDAY, M.

Oil // district 6 // lease#11556

op: WINCHESTER PRODUCTION COMPANY

cum_oil

182k BBL

cum_gas

0 MCF

wells

3

production

1993-01 — 2026-03

peak_month

1993-03

-- production_history

cum_oil: 182,395 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

664 BBL/mo

Di (annual)

2.9%

b-factor

0.0

EUR

210,727 BBL

R-squared

0.432

type

exponential

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3WINCHESTER PRODUCTION CO., LTD.36,5002007-05-08
4SHELBY, MICHAEL H.16,3001985-03-07
2SHELBY, MICHAEL H.16,3001984-09-24
EOF // data source: Texas Railroad Commission // 2026