WINDHAM TXL B9

Oil · District 7C · Lease #20076

Operator: COG OPERATING LLC

Cum Oil

523k BBL

Cum Gas

1.6M MCF

casinghead

Wells

1

Production

2018-07 — 2026-04

Peak Month

2018-09

Production History

Cum Oil: 522,771 BBL Cum Gas: 1,597,637 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

12,700 BBL/mo

Di (annual)

40.4%

b-factor

0.0

EUR

377,444 BBL

R-squared

0.608

type

exponential

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3006LHCOG OPERATING LLC111,0002017-10-19