EAST MAGNET WITHERS FRIO UNIT

Oil // district 3 // lease#2918

op: MCGOWAN WORKING PARTNERS, INC.

cum_oil

191k BBL

cum_gas

0 MCF

wells

4

production

1993-01 — 2026-03

peak_month

2009-12

-- production_history

cum_oil: 191,379 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,665 BBL/mo

Di (annual)

71.2%

b-factor

2.0

EUR

210,400 BBL

R-squared

0.861

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3MCGOWAN WORKING PARTNERS, INC.26,5002010-12-07
3DTERRA RESOURCES, INC.26,2002003-02-27
1ATERRA RESOURCES, INC.17,6231987-09-30
3ATERRA RESOURCES, INC.16,0001986-04-18
EOF // data source: Texas Railroad Commission // 2026