crude oil
Edison forces gas exporter to cut costs
First time a major European customer has taken RasGas, the state-owned Qatari energy group, to arbitration and won
With Glencore deal set to fail, Xstrata faces growth push alone
* Friday vote set to end latest effort to combine companies
Chesapeake offloads $6.9bn in assets
Gas producer will use proceeds to pay off $4bn term loan from Goldman Sachs and Jefferies as it raises cash to finance capital spending plans
