There are some considerations to put Electrification on more of the Transportation so that dependence on Oil and Gas can be minimized. There are some instances in which Transportation still depends on Oil and Gas resources when these are first converted to Electrical Energy, transported to the place of consumption and then utilized in battery charging that can be used in Transportation. These cycles are expensive and results in loss of energy in
First Carriage of Oil and Gas from place of excavation to the Power Plant Sites
Energy lost in the conversion of Electrical Energy
Energy lost in up-conversion of AC voltages for Transmission at the desired distance
Charging losses to the vehicle batteries.
This cycle can only be minimized when Electrical Energy is obtained from other sources like Nuclear, Wind Power (there might be significant amount of energy from Oil and Gas spent while making such turbine). There are also things to consider when going electric. These are whether sources of Electrical Energy are nuclear, Renewable like Solar Power, Wind Power, Wave Power, Geo-thermal, and so on. The greater the generation percentage of above-mentioned sources, greater would be their utilization and minimization of dependence on non-renewable resources like Oil & Gas. And if generation capacity can be increased with minimum use of such resources (Oil & Gas), greater would be incentives and meanings for going electric. There are also limiting factors that inhibit the usage of energy. First Major source of energy generation in countries like USA is Gas . There are also some environmental and handling hazards in nuclear power that must be handled carefully before it can be used for that purpose. Although MWs and GWs utility scale Power Plants might be constructed, despite its low operating costs, its still not dominant form of electricity generation in USA or similar countries, energy wise.
The Troubled Link between Gas and Electricity Grids, IEEE Spectrum vol. 53, no.6 (INT), June 2016, p. 09,