NEFF WEST E 9-4

Oil · District 7C · Lease #22817

Operator: DIAMONDBACK E&P LLC

Cum Oil

211k BBL

Cum Gas

953k MCF

casinghead

Wells

1

Production

2024-11 — 2026-04

Peak Month

2025-08

Production History

Cum Oil: 210,725 BBL Cum Gas: 953,335 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

22,130 BBL/mo

Di (annual)

129.1%

b-factor

0.0

EUR

205,916 BBL

R-squared

0.549

type

exponential

Operator History (from monthly production reports)

2025-05 — 2026-07 DIAMONDBACK E&P LLC 15 mo
2024-11 — 2025-04 DE IV OPERATING, LLC 6 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4305HDIAMONDBACK E&P LLC310,5552024-01-08