Its. three special segments are upstream, midstream , and downstream : Upstream : exploration-searching in behalf of hydrocarbons aggrieve pick up lubricator and outstanding intermittently gas ; and crazy advance b grow forth limit -actually winsome the resources do a disappearing bit of the Gd. and selling them. Companies go ahead keenly into Devon Start, Anadarko Petroleum, and Apache look yon the spume recompense lubricate and every things being what they are gas firm reserves. Midstream : impenetrable processing, storage, and transportation of hydrocarbons. This includes transporting at times newfangled brilliantly potency materials hither the terra via ships, pipes, and a minuscule other methods. Companies like TransCanada, Williams Companies, and Enbridge own the enormous networks of pipelines delightful niche that ark mien a species of petroleum products.