MANGOLD, STALEY

Oil · District 13 · Lease #24071

Operator: STEPHENS & JOHNSON OPERATING CO.

Cum Oil

36k BBL

Cum Gas

0 MCF

Wells

9

Production

1993-01 — 2017-09

Peak Month

1994-01

Production History

Cum Oil: 36,180 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

572 BBL/mo

Di (annual)

37.0%

b-factor

0.6

EUR

37,625 BBL

R-squared

0.973

type

hyperbolic

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12LLANDRUM PETROLEUM CO., INC.11,9991985-06-11
13LLANDRUM PETROLEUM CO., INC.11,9991985-06-11
10LLANDRUM PETROLEUM CO., INC.11,9991984-07-19
8LLANDRUM PETROLEUM CO., INC.11,9991984-07-19
9LLANDRUM PETROLEUM CO., INC.11,9991984-07-19
6LLANDRUM PETROLEUM CO., INC.11,9991984-05-11
2LLANDRUM PETROLEUM CO., INC.11,9991984-02-28
3LLANDRUM PETROLEUM CO., INC.11,9991984-02-28
4L42-009-31932--------
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