NEAL RANCH "77" A

Oil · District 7C · Lease #17274

Operator: COG OPERATING LLC

Cum Oil

265k BBL

Cum Gas

1.1M MCF

casinghead

Wells

6

Production

2010-07 — 2026-04

Peak Month

2013-09

Production History

Cum Oil: 264,755 BBL Cum Gas: 1,126,479 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,874 BBL/mo

Di (annual)

32.6%

b-factor

0.6

EUR

210,366 BBL

R-squared

0.598

type

hyperbolic

Operator History (from monthly production reports)

2010-07 — 2026-07 COG OPERATING LLC 193 mo

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
16COG OPERATING LLC112,0002013-04-10
11COG OPERATING LLC112,0002013-03-18
15COG OPERATING LLC112,0002013-03-12
7COG OPERATING LLC111,1002011-02-28
3COG OPERATING LLC112,0002010-07-28
4COG OPERATING LLC312,0002010-03-24