Petroleum microbiology oil while A. borkumensis simutaneously increases synthesis of anionic glucoproteins, which are used to emulsify hydrocarbons in the environment and increase their bioavailability. The presence of crude oil along with appropriate levels of nitrogen and phosphor catalyzes the removal of petroleum either by mechanisms that enhance the efficiency of substrate uptake or by direct biodegradation of aliphatic chains. Two well-known oil spills exemplify large scale marine bioremediation applications: In 1989, the Exxon Valdez ran aground, spilling 41.6 million liters of crude oil, and launching one of the first major bioremediation efforts for an oil spill. Cleanup of Alaskan shorelines relied
Exxon exclusively. In Colombia, Japan, and formerly Malaysia, both the Esso and Mobil brands are used, and Esso and Mobil in Japan will be rebranded as ENEOS in 2020, while Esso and Mobil in Malaysia were fully rebranded as Petron in 2013. Exxon Exxon was the brand name of oil and natural resources company Exxon Corporation, prior to 1972 known as Standard Oil Company of New Jersey. In 1999, Exxon Corporation merged with Mobil to form ExxonMobil. The "Exxon" brand is still used by ExxonMobil's downstream operations as a brand for certain gas stations, motor fuel and related products (the highest