UPTON 'Z' FEE

Oil · District 08 · Lease #34334

Operator: TEXACO E & P INC.

Cum Oil

2.8M BBL

Cum Gas

3k MCF

casinghead

Wells

28

Production

1994-11 — 2026-04

Peak Month

1997-09

Production History

Cum Oil: 2,801,461 BBL Cum Gas: 2,798 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

31,360 BBL/mo

Di (annual)

25.9%

b-factor

0.4

EUR

2,266,755 BBL

R-squared

0.881

type

hyperbolic

Operator History (from monthly production reports)

2022-12 — 2026-07 DIAMONDBACK E&P LLC 44 mo
2022-02 — 2022-11 FIREBIRD ENERGY LLC 10 mo
2002-06 — 2022-01 CHEVRON U. S. A. INC. 236 mo
1994-11 — 2002-05 TEXACO E & P INC. 91 mo

Wells (28)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
18DIAMONDBACK E&P LLC15,0002013-04-17
23DIAMONDBACK E&P LLC15,0002013-04-17
24DIAMONDBACK E&P LLC15,0002013-04-17
21WDIAMONDBACK E&P LLC25,0002013-03-20
22WDIAMONDBACK E&P LLC25,0002013-03-20
19DIAMONDBACK E&P LLC15,0002010-06-07
20DIAMONDBACK E&P LLC25,0002010-06-07
16WDIAMONDBACK E&P LLC34,6502001-08-02
17WDIAMONDBACK E&P LLC24,6502001-08-02
14WDIAMONDBACK E&P LLC14,5551997-07-24
15DIAMONDBACK E&P LLC14,5301997-07-24
15WDIAMONDBACK E&P LLC14,5301997-07-24
2WSDIAMONDBACK E&P LLC11,4001996-09-03
13DIAMONDBACK E&P LLC14,7001996-04-16
1WSDIAMONDBACK E&P LLC21,4001996-02-29
11DIAMONDBACK E&P LLC14,7001996-02-15
10WDIAMONDBACK E&P LLC14,7001996-02-14
9WDIAMONDBACK E&P LLC14,7001996-02-05
1BMDIAMONDBACK E&P LLC12,9501995-11-27
8DIAMONDBACK E&P LLC14,7001995-10-05
8WDIAMONDBACK E&P LLC14,7001995-10-05
7DIAMONDBACK E&P LLC14,7001995-06-21
5DIAMONDBACK E&P LLC14,7001995-01-26
6DIAMONDBACK E&P LLC14,7001995-01-26
3DIAMONDBACK E&P LLC14,7001995-01-10
3WDIAMONDBACK E&P LLC14,7001995-01-10
4DIAMONDBACK E&P LLC14,7001995-01-10
2DIAMONDBACK E&P LLC15,0001994-10-10