NEAL RANCH '57' UNIT

Oil · District 7C · Lease #18818

Operator: COG OPERATING LLC

Cum Oil

498k BBL

Cum Gas

1.2M MCF

casinghead

Wells

1

Production

2014-10 — 2026-04

Peak Month

2014-11

Production History

Cum Oil: 498,180 BBL Cum Gas: 1,151,231 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

20,702 BBL/mo

Di (annual)

125.2%

b-factor

0.6

EUR

452,649 BBL

R-squared

0.815

type

hyperbolic

Operator History (from monthly production reports)

2014-10 — 2026-07 COG OPERATING LLC 142 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
32HCOG OPERATING LLC215,0002024-10-30