SPENCER "999"

Oil · District 10 · Lease #8032

Operator: MEWBOURNE OIL COMPANY

Cum Oil

262k BBL

Cum Gas

1.2M MCF

casinghead

Wells

3

Production

2009-09 — 2026-04

Peak Month

2009-10

Production History

Cum Oil: 262,332 BBL Cum Gas: 1,183,718 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,960 BBL/mo

Di (annual)

78.1%

b-factor

0.7

EUR

271,520 BBL

R-squared

0.668

type

hyperbolic

Operator History (from monthly production reports)

2009-09 — 2026-07 MEWBOURNE OIL COMPANY 203 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HMEWBOURNE OIL COMPANY18,5002012-01-12
2HMEWBOURNE OIL COMPANY18,5002010-07-26
1HMEWBOURNE OIL COMPANY18,5002009-06-01