RIO NUECES 37-44 UNIT 1

Oil · District 08 · Lease #49945

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

2.7M BBL

Cum Gas

9.4M MCF

casinghead

Wells

7

Production

2018-02 — 2026-04

Peak Month

2020-10

Production History

Cum Oil: 2,665,928 BBL Cum Gas: 9,433,765 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

57,367 BBL/mo

Di (annual)

27.2%

b-factor

0.0

EUR

2,533,898 BBL

R-squared

0.581

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2018-02 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 83 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
231DIAMONDBACK E&P LLC111,0002019-03-22
241DIAMONDBACK E&P LLC111,0002019-03-22
242DIAMONDBACK E&P LLC111,0002019-03-22
222DIAMONDBACK E&P LLC111,0002017-07-24
211DIAMONDBACK E&P LLC111,0002017-07-21
212DIAMONDBACK E&P LLC111,0002017-07-21
221DIAMONDBACK E&P LLC111,0002017-07-21