paragraph_text: According to Forbes magazine, Oklahoma City-based Devon Energy Corporation, Chesapeake Energy Corporation, and SandRidge Energy Corporation are the largest private oil-related companies in the nation, and all of Oklahoma's Fortune 500 companies are energy-related. Tulsa's ONEOK and Williams Companies are the state's largest and second-largest companies respectively, also ranking as the nation's second and third-largest companies in the field of energy, according to Fortune magazine. The magazine also placed Devon Energy as the second-largest company in the mining and crude oil-producing industry in the nation, while Chesapeake Energy ranks seventh respectively in that sector and Oklahoma Gas & Electric ranks as the 25th-largest gas and electric utility company.

paragraph_text: The River Rouge is a 127-mile (204 kilometer) river in the Metro Detroit area of southeastern Michigan. It flows into the Detroit River at Zug Island, which is the boundary between the cities of River Rouge and Detroit.

paragraph_text: Skhodnya River (), also known as Sukhodnya, Vkhodnya, Vykhodnya and Vskhodnya is a river in the northwest of Moscow, the second largest tributary (after the Yauza River) of the Moskva River. The length of the Skhodnya is 47 km (5 km in Moscow proper). The area of its basin is 17,2 km² (within the city). The Skhodnya originates near the village of Alabushevo (part of Zelenograd) and flows into the Moskva River near the Tushino Airfield. The Skhodnya River is connected with a derivational canal, which supplies water from the Volga River through the Khimki Reservoir (with the help of the Skhodnenskaya hydroelectric plant) to Moscow for sanitary irrigation.

paragraph_text: The Syas River () is a river in Lyubytinsky District of Novgorod Oblast and Tikhvinsky and Volkhovsky Districts of Leningrad Oblast, Russia. The Syas River flows from Valdai Hills north into Lake Ladoga. A town of Syasstroy is located at its mouth. It is long, and the area of its basin . The largest tributary of the Syas is the Tikhvinka River (right).

paragraph_text: The Red River is the second - largest river basin in the southern Great Plains. It rises in two branches in the Texas Panhandle and flows east, where it acts as the border between the states of Texas and Oklahoma. It forms a short border between Texas and Arkansas before entering Arkansas, turning south near Fulton, Arkansas, and flowing into Louisiana, where it flows into the Atchafalaya River. The total length of the river is 1,360 miles (2,190 km), with a mean flow of over 57,000 cubic feet per second (1,600 m / s) at the mouth.

paragraph_text: Sayre is a city in and the county seat of Beckham County, in western Oklahoma, United States. It is halfway between Oklahoma City, and Amarillo, Texas, on Interstate 40 and the former U.S. Route 66. The population was 4,375 at the 2010 census, the largest recorded by a census since Sayre's founding. It was an increase of 6.3 percent from the 2000 census.

paragraph_text: The Igaraçu River, also called the Igarassu River, is a distributary of the Parnaíba River in northern Piauí state in Brazil. It flows from its origin on the Parnaiba River southwest of the city of Parnaíba to the mouth on the Atlantic Ocean near the city of Luís Correia.

paragraph_text: The Humaya River is a river in the state of Sinaloa, Mexico, that connects to the Tamazula River in the city of Culiacán to form the Culiacán River. The source of the river is the Sierra Madre Occidental mountains. The water flows from the north of the city. The water then flows to the Pacific Ocean.

paragraph_text: The Ille () is a small river in Brittany, France, right tributary of the river Vilaine. It is long. It flows into the Vilaine in the city Rennes.

paragraph_text: Oklahoma City is the capital and largest city of the state of Oklahoma. The county seat of Oklahoma County, the city ranks 27th among United States cities in population. The population grew following the 2010 Census, with the population estimated to have increased to 620,602 as of July 2014. As of 2014, the Oklahoma City metropolitan area had a population of 1,322,429, and the Oklahoma City-Shawnee Combined Statistical Area had a population of 1,459,758 (Chamber of Commerce) residents, making it Oklahoma's largest metropolitan area. Oklahoma City's city limits extend into Canadian, Cleveland, and Pottawatomie counties, though much of those areas outside of the core Oklahoma County area are suburban or rural (watershed). The city ranks as the eighth-largest city in the United States by land area (including consolidated city-counties; it is the largest city in the United States by land area whose government is not consolidated with that of a county or borough).

paragraph_text: The Zarqa River (, "Nahr az-Zarqāʾ", lit. "the River of the Blue [City]") is the second largest tributary of the lower Jordan River, after the Yarmouk River. It is the third largest river in the region by annual discharge, and its watershed encompasses the most densely populated areas east of the Jordan River. It rises in springs near Amman, and flows through a deep and broad valley into the Jordan, at an elevation lower.

paragraph_text: It rises in the agricultural lands of Adair County, Iowa, a few miles northeast of Greenfield. The river initially flows east then bends south, passing Macksburg and Davis City and crossing Interstate 35. It then flows into Missouri, where much of its course is channelized. The Weldon River joins at the town of Trenton, the largest settlement along the Thompson River. Below Trenton, the Thompson meanders south for another , joining the Grand River just north of Utica in Livingston County.

paragraph_text: Lake Roś (Polish: "Jezioro Roś", German: "Roschsee") is a lake in the Masurian Lake District of the Warmian-Masurian Voivodeship of Poland. This S-shaped glacial lake has an area of 18.9 km² and a depth of 31.8 metres. The Swięcek and Konopka rivers flow into the lake, while the Pisa River flows out of it. The largest town on the lake is Pisz.

paragraph_text: The city is roughly bisected by the North Canadian River (recently renamed the Oklahoma River inside city limits). The North Canadian once had sufficient flow to flood every year, wreaking destruction on surrounding areas, including the central business district and the original Oklahoma City Zoo. In the 1940s, a dam was built on the river to manage the flood control and reduced its level. In the 1990s, as part of the citywide revitalization project known as MAPS, the city built a series of low-water dams, returning water to the portion of the river flowing near downtown. The city has three large lakes: Lake Hefner and Lake Overholser, in the northwestern quarter of the city; and the largest, Lake Stanley Draper, in the sparsely populated far southeast portion of the city.

paragraph_text: The Biobío River (also known as Bío Bío or Bio-Bio) is the second largest river in Chile. It originates from Icalma and Galletué lakes in the Andes and flows 380 km to the Gulf of Arauco on the Pacific Ocean.

paragraph_text: The Uzh () is a river, a right tributary of the Pripyat, which empties into the Kiev Reservoir, in central Ukraine. It takes its source in the Zhytomyr Oblast (province) of northern Ukraine, and then flows briefly near the delta of the Berezina River. The Uzh then flows near the city of Chernobyl of Kiev Oblast, into the Pripyat River.

paragraph_text: In descending order of population, Oklahoma's largest cities in 2010 were: Oklahoma City (579,999, +14.6%), Tulsa (391,906, −0.3%), Norman (110,925, +15.9%), Broken Arrow (98,850, +32.0%), Lawton (96,867, +4.4%), Edmond (81,405, +19.2%), Moore (55,081, +33.9%), Midwest City (54,371, +0.5%), Enid (49,379, +5.0%), and Stillwater (45,688, +17.0%). Of the state's ten largest cities, three are outside the metropolitan areas of Oklahoma City and Tulsa, and only Lawton has a metropolitan statistical area of its own as designated by the United States Census Bureau, though the metropolitan statistical area of Fort Smith, Arkansas extends into the state.

paragraph_text: Walking trails line Lake Hefner and Lake Overholser in the northwest part of the city and downtown at the canal and the Oklahoma River. The majority of the east shore area is taken up by parks and trails, including a new leashless dog park and the postwar-era Stars and Stripes Park. Lake Stanley Draper is the city's largest and most remote lake.

paragraph_text: Broken Arrow is a city located in the northeastern part of the U.S. state of Oklahoma, primarily in Tulsa County but also with a section of the city in western Wagoner County. It is the largest suburb of Tulsa. According to the 2010 census, Broken Arrow has a population of 98,850 residents and is the fourth-largest city in the state. However, a July 2017, estimate reports that the population of the city is just under 112,000, making it the 280th-largest city in the United States. The city is part of the Tulsa Metropolitan Area, which has a population of 961,561 residents.

paragraph_text: The Hanalei River on the island of Kauai in Hawaii flows north from the eastern slopes of Mount Waialeale for until it reaches the Pacific Ocean at Hanalei Bay as an estuary. With a long-term mean discharge of 216 cubic feet (6.12 cubic meters) per second, in terms of water flow it is the second-largest river in the state; although its watershed of is only sixth-largest on Kauai, it encompasses areas of the highest recorded rainfall on the planet and plunges precipitously from its headwaters at above sea level.

Question: What river flows through Oklahoma's largest city?
Answer: North Canadian River