"Made in America" advanced battery technology and electric military vehicles would reduce fuel demand and cost, afford tactical flexibility, and decrease operational risks.

CNN: Commentary: Save automakers to help economy and security

Flexibility, greater connectivity and high fuel prices (which lead to higher airfare) have been cited as reasons for the rise in rail.

BBC: Corporate rail travel on the rise

That, in turn, means more flexibility to control energy costs and reduced exposure to volatile fossil fuel prices.

FORBES: EBay And Republican Lawmaker Score Clean Energy Win In Utah

Though the co-branded Visa or MasterCard cards offer more flexibility, some companies like ExxonMobil are pulling back those cards in favor of fuel-only cards.

WSJ: Gas Credit Cards Offer Few Rewards