While natural gas is formed primarily of methane, it can also include ethane, propane, butane and pentane. The composition of natural gas can vary widely, but below is a chart outlining the typical makeup of natural gas before it is refined.
Roadside Dispatch-Roadside assistance is another service by Visa Signature. However, unlike similar services provided by American Express or MasterCard, there is a $59.95 service call. But the service includes towing, jump-start service, lock-out service, fuel delivery and whiching.
Hereâs how I described the benefit at the time: The Alaska Airlines Visa Signature companion certificate benefit is one of the real values in all of travel â every year cardholders get to take a companion along on any paid fare for $99 plus tax (it used to be $50, alas).