FOUR-WAY RANCH

Oil // district 2 // lease#849

op: TEXAS PETROLEUM INVESTMENT CO.

cum_oil

163k BBL

cum_gas

0 MCF

wells

6

production

1993-01 — 2026-03

peak_month

2012-10

-- production_history

cum_oil: 163,212 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

760 BBL/mo

Di (annual)

29.8%

b-factor

2.0

EUR

139,122 BBL

R-squared

0.550

type

hyperbolic

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12MCGOWAN WORKING PARTNERS, INC.28,6002011-12-02
12RMCGOWAN WORKING PARTNERS, INC.28,6002011-12-02
11MOBIL PRODUCING TX. & N.M. INC.16,4441984-02-10
21MOBIL PRODUCING TX. & N.M. INC.28,0091984-02-10
20MOBIL PRODUCING TX. & N.M. INC.16,9431982-04-23
32MOBIL PRODUCING TX. & N.M. INC.27,0521981-06-25
EOF // data source: Texas Railroad Commission // 2026