DRENNAN "208"

Oil // district 11 // lease#62366

op: WALSH PETROLEUM, INC.

fields: WELCH

cum_oil

246k BBL

cum_gas

0 MCF

wells

8

production

1993-01 — 2026-03

peak_month

1999-08

-- production_history

cum_oil: 246,374 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,541 BBL/mo

Di (annual)

10.0%

b-factor

0.1

EUR

200,714 BBL

R-squared

0.950

type

hyperbolic

-- wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9WALSH PETROLEUM, INC.15,1002008-07-02
8WALSH PETROLEUM, INC.15,1001999-05-24
7WALSH PETROLEUM, INC.15,1001997-12-02
6MCENA INC.24,9501991-11-01
5COLA PETROLEUM, INC.15,0001981-09-24
4COLA PETROLEUM, INC.15,0001981-01-26
2COLA PETROLEUM, INC.14,9501979-06-29
1COLA PETROLEUM, INC.14,9501978-11-17
EOF // data source: Texas Railroad Commission // 2026