April 22nd, 2014 - 10:00am:
SIGMA3 Announces Janet McGuire as Denver Operations Manager for Microseismic and Borehole Seismic Imaging http://t.co/Jk3LSpYf1n

April 14th, 2014 - 9:42am:
Feds say Eagle Ford and Bakken could lead to end of U.S. oil imports http://t.co/yqmi6e0l8q via @SABizJournal