Devon just put this up recently:

Haynesville De-Risking Under Way
The Haynesville Shale play
encompasses a large geographic area in
eastern Texas and northern Louisiana,
and Devon holds extensive acreage
in both states. In 2009, we began to
methodically de-risk parts of our leases
in Texas. We began with 110,000 net
acres in the greater Carthage area of east
Texas, which includes parts of Harrison,
Panola and Shelby counties.
To date, Devon has drilled almost
a dozen Haynesville horizontal wells
on our Carthage leases achieving solid,
repeatable results. We now expect our
greater Carthage acreage to support
more than 1,000 wells. As with the
Barnett and Cana-Woodford plays, Devon
acquired its Carthage area leases at very
attractive costs and at an average royalty
burden of only 19%. In 2010 we expect to
drill 11 additional Haynesville Shale wells
on our Carthage area leases.
To the south of Carthage, Devon
holds 47,000 net acres primarily in
Nacogdoches, San Augustine and Sabine
counties in Texas and in Sabine Parish,
Louisiana. We are in the very early stages
of drilling and de-risking this southern
Haynesville acreage. In 2010 we expect
to drill about 50 wells (14 net wells) in the
area as we work to secure acreage.
In addition to the potential in the
Haynesville shale formation, portions of
our acreage in the greater Carthage and
southern areas also have Bossier Shale
potential. In 2010 we expect to drill our
first wells targeting the Bossier Shale to
evaluate the quality of this formation
under our acreage.