Question: The company that Corexit is an indirect subsidiary of is headquartered in what city?

full_context: Document 1: BP: BP P.L.C., formerly British Petroleum, is a British multinational oil and gas company headquartered in London. It is one of the world's seven oil and gas "supermajors", whose performance in 2012 made it the world's sixth-largest oil and gas company, the sixth-largest energy company by market capitalization and the company with the world's twelfth-largest revenue (turnover). It is a vertically integrated company operating in all areas of the oil and gas industry, including exploration and production, refining, distribution and marketing, petrochemicals, power generation and trading. It also has renewable energy interests in biofuels and wind power.
Document 2: Crude oil washing: Crude oil washing (COW) is washing out the residue from the tanks of an oil tanker using the crude oil cargo itself, after the cargo tanks have been emptied. Crude oil is pumped back and preheated in the slop tanks, then sprayed back via high pressure nozzles in the cargo tanks onto the walls of the tank. Due to the sticky nature of the crude oil, the oil clings to the tank walls, and such oil adds to the cargo 'remaining on board' (the ROB). By COWing the tanks, the amount of ROB is significantly reduced, and with the current high cost of oil, the financial savings are significant, both for the Charterer and the Shipowner. If the cargo ROB is deemed as 'liquid and pumpable' then the charterers can claim from the owner for any cargo loss for normally between 0.3% up to 0.5%. It replaced the "load on top" and "seawater washing" systems, both of which involved discharging oil-contaminated water into the sea. MARPOL 73/78 made this mandatory equipment for oil tankers of 20,000 tons or greater deadweight.
Document 3: Corexit: Corexit (often styled COREXIT) is a product line of oil dispersants used during oil spill response operations. It is produced by Nalco Company, associated with BP and Exxon and an indirect subsidiary of Ecolab. Corexit was originally developed by the Standard Oil Company of New Jersey. Corexit is typically applied by aerial spraying or spraying from ships directly onto an oil slick. On contact with the dispersant, oil that would otherwise float on the surface of the water is emulsified into tiny droplets and sinks or (in the unusual case of sub-surface application) remains suspended in the water. In theory this allows the oil to be more rapidly degraded by bacteria (bioremediation) and prevents it from accumulating on beaches and in marshes.
Document 4: Procter &amp; Gamble: Procter & Gamble Co., also known as P&G, is an American consumer goods corporation headquartered in downtown Cincinnati, Ohio, United States of America, founded in 1837 by William Procter and James Gamble. It primarily specializes in a wide range of cleaning agents, personal care and hygienics products.
Document 5: Exxon Valdez: Oriental Nicety, formerly Exxon Valdez, Exxon Mediterranean, SeaRiver Mediterranean, S/R Mediterranean, Mediterranean, and Dong Fang Ocean, was an oil tanker that gained notoriety after running aground in Prince William Sound spilling hundreds of thousands of barrels of crude oil in Alaska. On March 24, 1989, while owned by the former Exxon Shipping Company, and captained by Joseph Hazelwood and First Mate James Kunkel bound for Long Beach, California, the vessel ran aground on the Bligh Reef resulting in the second largest oil spill in United States history. The size of the spill is estimated to have been 40900 to , or 257,000 to 750,000 barrels. In 1989, the "Exxon Valdez" oil spill was listed as the 54th largest spill in history .
Document 6: Nembe Creek Trunk Line: '"Nembe Creek Trunk Line (NCTL)", is a 97 kilometre, 150,000 barrels of oil per day pipeline constructed by Royal Dutch Shell Plc and situated in the Niger Delta region of Nigeria. "The Trunk Line is one of Nigeria’s major oil transportation arteries that evacuate crude from the Niger Delta to the Atlantic coast for export." It is owned by Aiteo Group, which recently purchased it as part of the related facilities of the prolific oil bloc OML29 from Shell Petroleum Development Company, SPDC. By March 2015, the Shell Petroleum Development Company of Nigeria Limited (SPDC), a subsidiary of Royal Dutch Shell plc (Shell), completed the assignment of its interest in OML29 and the Nembe Creek Trunk Line to Aiteo Eastern E&P Company Limited, a subsidiary of Aiteo Group. The other joint venture partners, Total E&P Nigeria Limited and Nigerian Agip Oil Company Limited also assigned their interests of 10% and 5% respectively in the lease, ultimately giving Aiteo Eastern E&P Company Limited a 45% interest in OML29 and the Nembe Creek Trunk Line.
Document 7: Ecolab: Ecolab Inc., headquartered in St. Paul, Minnesota, is an American global provider of water, hygiene and energy technologies and services to the food, energy, healthcare, industrial and hospitality markets. It was founded as Economics Laboratory in 1923 by Merritt J. Osborn, and renamed "Ecolab" in 1986.
Document 8: Nordson Corporation: Nordson Corporation is an American multinational corporation that designs and manufactures dispensing equipment for consumer and industrial adhesives, sealants and coatings. The company also manufactures equipment used in the testing and inspection of electronic components as well as technology-based systems for curing and surface treatment processes. The company is headquartered in Westlake, Ohio, and has direct operations and sales-support offices in approximately 30 countries.
Document 9: Actuant: Actuant Corporation is an American diversified industrial company serving customers from operations in more than 30 countries. The Actuant businesses are leaders in a broad array of niche markets including branded hydraulic tools and solutions; specialized products and services for energy markets and highly engineered position and motion control systems. The Company was founded in 1910 and is headquartered in Menomonee Falls, Wisconsin. Actuant business operations are divided into three segments focused on the markets they serve.
Document 10: Watkins Incorporated: Watkins Incorporated is a manufacturer of health remedies, baking products, and other household items. The entire catalog includes 400 products. It is based in Winona, Minnesota, United States, which utilizes an Omni channel marketing strategy which includes a national retail sales force which focuses on selling to the retail channel as well as an independent sales force of 25,000 people to distribute its products. This independent sales force sells the products using various methods, including the Internet, person to person, trade shows, party planning, and fund-raising. In order to increase overall awareness for the brand, the company began offering products in national retail outlets such as Walmart, Target, Walgreens, Kroger and other mass, drug and grocery retail stores in 2005.
Document 11: Minnetonka, Minnesota: Minnetonka ( ) is a suburban city in Hennepin County, Minnesota, United States, eight miles (13 km) west of Minneapolis. The population was 49,734 at the 2010 census. The name comes from the Dakota Indian "mni tanka", meaning "great water". The city is the home of Cargill, the country's largest privately owned company, and United Healthcare, the state's largest publicly owned company.
Document 12: ExxonMobil: Exxon Mobil Corporation is an American multinational oil and gas corporation headquartered in Irving, Texas. It is the largest direct descendant of John D. Rockefeller's Standard Oil Company, and was formed on November 30, 1999 by the merger of Exxon (formerly Standard Oil Company of New Jersey) and Mobil (formerly the Standard Oil Company of New York).
Document 13: Emerson Electric: The Emerson Electric Company () is an American multinational corporation headquartered in Ferguson, Missouri, United States. This Fortune 500 company manufactures products and provides engineering services for a wide range of industrial, commercial, and consumer markets.
Document 14: Standard Oil of Iowa: Standard Oil Company of Iowa was created in 1885 as a subsidiary of the Standard Oil Trust to handle marketing along the Pacific Coast states of Idaho, Oregon, Washington, California, and Arizona. Though named for the midwestern state, it never included Iowa as one of its primary marketing areas. A prior company named Standard Oil of California had been formed in 1877, and was not associated with the Standard Oil Trust. In 1906, Standard Oil of Iowa was dissolved and its assets handed over to a new Standard Oil of California, later Chevron Oil Company, and now the Chevron Corporation. Standard Oil Company of Iowa is thus the original company that is now Chevron.
Document 15: FMC Corporation (Fridley Plant): The 18-acre FMC Corporation (Fridley Plant) is a United States Environmental Protection Agency Superfund site located in Anoka County, Minnesota, several hundred feet east of the Mississippi River. Solvents, paint sludge, and plating wastes were generated and disposed of in an on-site dump from the 1940s until 1969. Minnesota Pollution Control Agency (MPCA) staff sampled site surface and groundwater in the early 1980s and confirmed that ground and surface water were contaminated by industrial solvents. In the 1980s, solvents from the site were detected in the city of Minneapolis drinking water system intake that is located downgradient of where the FMC site groundwater contaminant plume enters the river.
ground_truth: St. Paul, Minnesota