WINDHAM TXL C4

Oil · District 7C · Lease #20157

Operator: COG OPERATING LLC

Cum Oil

317k BBL

Cum Gas

1.0M MCF

casinghead

Wells

1

Production

2018-10 — 2026-04

Peak Month

2018-11

Production History

Cum Oil: 317,480 BBL Cum Gas: 1,016,723 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

28,425 BBL/mo

Di (annual)

257.3%

b-factor

0.7

EUR

378,524 BBL

R-squared

0.916

type

hyperbolic

Operator History (from monthly production reports)

2018-10 — 2026-07 COG OPERATING LLC 94 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5307LHCOG OPERATING LLC211,0002017-12-11