WINDHAM TXL C11

Oil · District 7C · Lease #20129

Operator: COG OPERATING LLC

Cum Oil

410k BBL

Cum Gas

991k MCF

casinghead

Wells

1

Production

2018-10 — 2026-04

Peak Month

2018-11

Production History

Cum Oil: 410,056 BBL Cum Gas: 990,527 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

25,761 BBL/mo

Di (annual)

138.7%

b-factor

0.5

EUR

433,527 BBL

R-squared

0.956

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5305LHCOG OPERATING LLC211,0002017-11-30