Chesapeake Energy 2004 Annual Report Download - page 15

Area 7
South Texas
and Gulf Coast
Chesapeake’s Gulf Coast district includes
Zapata County, which is Texas’ #1 gas-
producing county and where we are the
#4 gas producer. This area also includes a
number of counties along the Upper Texas
Gulf Coast where we have established a
significant presence. Throughout this district,
we use 3-D seismic data to delineate
potentially prolific structural and
stratigraphic traps.
2004 Total Production: 42 bcfe
12/31/04 Proved Reserves: 390 bcfe
12/31/04 Net Leasehold Acres: 370,000
Area 8
Permian
Chesapeake’s largest district by area, the
Permian Basin sprawls across west Texas
into eastern New Mexico and is the focus
area for much of the company’s oil
production. In addition, we are very
optimistic about the potential of the com-
pany’s deep gas exploration projects in the
Deep Delaware portion of the Permian Basin.
2004 Total Production: 30 bcfe
12/31/04 Proved Reserves: 482 bcfe
12/31/04 Net Leasehold Acres: 310,000
Area 5
Southern Oklahoma
Chesapeake’s Southern Oklahoma district
encompasses some of Oklahoma’s largest
fields, dating back to discoveries in the early
1900’s, and Chesapeake’s earliest successes,
such as the Golden Trend and Sholem
Alechem. In addition, it is also home to some
of the company’s most currently active fields,
such as Cement and Bray.
2004 Total Production: 52 bcfe
12/31/04 Proved Reserves: 697 bcfe
12/31/04 Net Leasehold Acres: 365,000
Area 6
Ark-La-Tex
The Ark-La-Tex district includes Chesapeake’s
activities in the Cotton Valley, Hosston and
other tight sand plays in East Texas and
northern Louisiana. In addition, we have
rapidly expanded our presence in the prolific
Barnett Shale play south of Ft. Worth.
Chesapeake is currently the third largest
Barnett Shale gas producer among public
independents in this exciting new area for
the company.
2004 Total Production: 20 bcfe
12/31/04 Proved Reserves: 547 bcfe
12/31/04 Net Leasehold Acres: 80,000
Area 3
Northwest Oklahoma
The company’s Northwest Oklahoma district
focuses on the massive Sahara gas resource
project. In this area, we have drilled more
than 600 successful wells and have more
than 2,500 undrilled locations remaining.
Active in Sahara since 1998, Chesapeake is
now the dominant operator with more than
800,000 net acres under lease in this multi-
county area of excellent gas production.
2004 Total Production: 57 bcfe
12/31/04 Proved Reserves: 793 bcfe
12/31/04 Net Leasehold Acres: 715,000
Area 4
Arkoma
The Arkoma Basin of eastern Oklahoma
and western Arkansas is a very prolific gas
basin. Chesapeake is targeting a variety of
complex but promising overthrust geological
targets in the southern portion of the basin.
In the northern portion, we are pursuing
shallow gas resource plays in the Caney and
Woodford shales and in the Hartshorne Coal.
2004 Total Production: 30 Bcfe
12/31/04 Proved Reserves: 397 Bcfe
12/31/04 Net Leasehold Acres: 450,000
CHESAPEAKE ENERGY CORPORATION ANNUAL REPORT 2004
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