HEMPHILL 65

Oil // district 8 // lease#31125

op: WINDOW OPERATING CO., THE

cum_oil

15k BBL

cum_gas

0 MCF

wells

2

production

2012-12 — 2026-03

peak_month

2015-05

-- production_history

cum_oil: 14,993 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,262 BBL/mo

Di (annual)

653.4%

b-factor

0.9

EUR

10,912 BBL

R-squared

0.845

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10WINDOW OPERATING CO., THE13,9902014-12-12
7WINDOW OPERATING CO., THE14,0002012-10-25
EOF // data source: Texas Railroad Commission // 2026