EXXON-UNIVERSITY

Oil // district 10 // lease#35934

op: NAUMANN OIL & GAS, INC.

fields: COWDEN, NORTH

cum_oil

178k BBL

cum_gas

0 MCF

wells

5

production

1998-12 — 2026-03

peak_month

1999-07

-- production_history

cum_oil: 178,110 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,994 BBL/mo

Di (annual)

164.4%

b-factor

1.4

EUR

210,667 BBL

R-squared

0.960

type

hyperbolic

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5NAUMANN OIL & GAS, INC.14,8001999-10-18
4NAUMANN OIL & GAS, INC.14,8001999-09-13
3NAUMANN OIL & GAS, INC.14,9001999-05-17
1NAUMANN OIL & GAS, INC.14,8001998-08-20
2NAUMANN OIL & GAS, INC.14,8001998-08-20
EOF // data source: Texas Railroad Commission // 2026