Other than naturalgas, Chesapeake also operates in oil production, oil and naturalgas marketing, naturalgascompression, rig drilling and trucking, which form the rest 25% of the stock price.
Onshore naturalgas transmission compression means any combination of compressors and associated equipment involved in moving naturalgas from production fields or naturalgas processing plants through transmission pipelines to naturalgas distribution pipelines and storage facilities.
Both Otto cycle(spark ignition) and Diesel cycle engines(compression ignition) engines can be made to run on multiple fuels(petroleum, ethanol, naturalgas) The cost is only nominally more than single fuel engines.