WINDHAM TXL B4

Oil · District 7C · Lease #20060

Operator: COG OPERATING LLC

Cum Oil

237k BBL

Cum Gas

1.1M MCF

casinghead

Wells

1

Production

2018-07 — 2026-04

Peak Month

2018-08

Production History

Cum Oil: 236,693 BBL Cum Gas: 1,063,174 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

15,500 BBL/mo

Di (annual)

103.2%

b-factor

0.2

EUR

225,380 BBL

R-squared

0.876

type

hyperbolic

Operator History (from monthly production reports)

2018-07 — 2026-07 COG OPERATING LLC 97 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3008AHCOG OPERATING LLC111,0002017-10-27