HEMPHILL 83

Oil // district 8 // lease#31420

op: WINDOW OPERATING CO., THE

cum_oil

144k BBL

cum_gas

0 MCF

wells

8

production

2014-02 — 2026-03

peak_month

2016-11

-- production_history

cum_oil: 143,580 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,793 BBL/mo

Di (annual)

37.1%

b-factor

0.2

EUR

112,682 BBL

R-squared

0.919

type

hyperbolic

-- wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7WINDOW OPERATING CO., THE24,0002019-08-29
10WINDOW OPERATING CO., THE15,0002019-04-18
8WINDOW OPERATING CO., THE14,0002017-09-21
6WINDOW OPERATING CO., THE14,0002016-09-22
4WINDOW OPERATING CO., THE14,0002015-11-04
5WINDOW OPERATING CO., THE14,0002015-11-04
3WINDOW OPERATING CO., THE14,3002014-12-04
2WINDOW OPERATING CO., THE14,0002013-12-03
EOF // data source: Texas Railroad Commission // 2026