Officials said the commanders will face a challenge of continuing training of Afghan forces while overseeing the extraction of tons of equipment and thousands of soldiers over the course of the year.

WSJ: Obama to Draw Down Troops in Afghanistan

U.S. officials acknowledged that commanders will face a challenge of continuing to train Afghan forces while overseeing the extraction of tons of equipment and thousands of soldiers over the course of the year.

WSJ: Obama to Draw Down Troops in Afghanistan

Onshore production means all well drilling and other equipment used in the onshore production, extraction, recovery, lifting, stabilization, separation or treating of petroleum and natural gas (including condensate).

FORBES: Just Tell the "Fracking" Truth