YORK 'A'

Oil // district 3 // lease#22021

op: UNION PACIFIC AUSTIN CHALK CO.

cum_oil

144k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2026-03

peak_month

2005-08

-- production_history

cum_oil: 144,231 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,541 BBL/mo

Di (annual)

103.5%

b-factor

0.7

EUR

107,883 BBL

R-squared

0.663

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2GEMINI EXPLORATION COMPANY28,5002005-06-22
2REGEMINI EXPLORATION COMPANY28,5002005-06-22
EOF // data source: Texas Railroad Commission // 2026