JOHNSON

Oil · District 7C · Lease #8009

Operator: ST. JOHNS OPERATING #1 L.P.

Cum Oil

342k BBL

Cum Gas

70 MCF

casinghead

Wells

9

Production

1993-01 — 2026-02

Peak Month

1999-12

Production History

Cum Oil: 342,250 BBL Cum Gas: 70 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,031 BBL/mo

Di (annual)

25.1%

b-factor

0.8

EUR

218,917 BBL

R-squared

0.629

type

hyperbolic

Operator History (from monthly production reports)

2002-08 — 2026-07 DURANGO RESOURCES CORP. 288 mo
1999-12 — 2002-07 ST. JOHNS OPERATING #1 L.P. 32 mo
1993-01 — 1999-11 CROSS TIMBERS OPERATING COMPANY 83 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12DURANGO RESOURCES CORP.13,5001997-12-11
3DURANGO RESOURCES CORP.24,9001981-05-13
5DURANGO RESOURCES CORP.24,8001980-06-30
11DURANGO RESOURCES CORP.13,5001980-05-19
9DURANGO RESOURCES CORP.13,5001980-04-29
8WDURANGO RESOURCES CORP.13,5001980-02-29
6DURANGO RESOURCES CORP.13,5001979-11-15
1DURANGO RESOURCES CORP.26,0001979-09-05
4DURANGO RESOURCES CORP.15,3001979-08-29