In oil and gas transportation, the closeness of process flow is very critical for the full utilization of energy and the reduction of oil and gas loss.

For those oil and gas properties being provided for impairment loss, the related depletion charge is determined based on the carrying amounts less impairment over their remaining useful lives.

There are other threats, such as oil and gas drilling, shipping and toxins, but they pale in comparison to climate change and the loss of the sea ice.