MARSTON-KOEHN

Oil · District 08 · Lease #45832

Operator: N & B OIL AND GAS LLC

Fields: MARSTON RANCH (CLEARFORK)

Cum Oil

31k BBL

Cum Gas

56k MCF

casinghead

Wells

5

Production

2014-02 — 2023-04

Peak Month

2015-03

Production History

Cum Oil: 30,611 BBL Cum Gas: 56,482 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,087 BBL/mo

Di (annual)

84.4%

b-factor

0.4

EUR

25,378 BBL

R-squared

0.795

type

hyperbolic

Operator History (from monthly production reports)

2025-09 — 2026-07 N & B OIL AND GAS LLC 11 mo

2014-11 — 2025-08 BLACKBEARD OPERATING, LLC 130 mo

2014-09 — 2014-10 CENTENNIAL RESOURCE PROD, LLC 2 mo

2014-02 — 2014-08 ATLANTIC EXPLORATION, LLC 7 mo

Wells (5)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
7	42-475-36941	N & B OIL AND GAS LLC	1	7,000	2014-12-17
6	42-475-36827	N & B OIL AND GAS LLC	1	5,200	2014-09-03
1SD	42-475-32065	WAGNER DUER & CO.	2	10,000	2013-10-22
3	42-475-36490	N & B OIL AND GAS LLC	1	6,700	2013-06-13
2	42-475-36478	N & B OIL AND GAS LLC	1	7,000	2013-05-10