Chevron is engaged in energy and chemicals operations. Upstream operations consist primarily of, among others, exploring for, developing and producing crude oil and natural gas; processing, liquefaction, transportation and regasification associated with liquefied natural gas, storage and marketing of natural gas; and a gas-to-liquids plant. Downstream operations consist primarily of, among others, refining crude oil into petroleum products; marketing of crude oil and refined products; and manufacturing and marketing of commodity petrochemicals, plastics for industrial uses and fuel and lubricant additives.

T-Mobile US provides mobile communications services, including voice, messaging and data, under its brands, T-Mobile and Metro? by T-Mobile, in the United States, Puerto Rico and the United States Virgin Islands. The company provides mobile communications services using its 4G Long-Term Evolution network and its 5G technology network. The company also provides various wireless devices, including handsets, tablets and other mobile communication devices, and accessories for sale, as well as financing through Equipment Installment Plans and leasing through JUMP! On Demand?. The company provides reinsurance for handset insurance policies and extended warranty contracts offered to its mobile communications customers.