Truly it'll be difficult to electrify trucks and tanks, these are heavy duty machines, and aside for energy production, oil and gas serves more purpose in production, like for plastics, Asphalt for road, tires or even paints. All these are reliant on oil and gas which may not go away quickly, for the sake of green energy. Although the oil and gas industry is supposed to face decline, but the resources itself won't be a thing of the past anytime soon.
Oil and gas resources will still be used by factories and large companies that produce electric machines, both now and in the future. Because replacing things like oil and gas will not be possible quickly, it will take longer to wean yourself off these two energy sources. However, for household needs, oil and gas may no longer be the primary option because there are other alternatives available for everyone. However, for larger projects, such as those you mentioned, oil and gas will likely remain the primary option.