Question: North Battleford Energy Centre is a natural gas-fired station owned by Northland Power located in the Rural Municipality of North Battleford, Saskatchewan, the plant was built by Kiewit Construction, an employee-owned Fortune 500 contractor based in Omaha, in which state?

Context paragraphs:
Yellowhead Power Station: Yellowhead Power Station is a natural gas-fired power station owned by SaskPower, located in North Battleford, Saskatchewan, Canada and operated as a peaking plant.  The plant was constructed and commissioned in December 2010 at a cost of $250 M CDN.  The plant is controlled remotely by satellite from Regina.

North Battleford: North Battleford is a city in west-central Saskatchewan, Canada.  It is directly across the North Saskatchewan River from the Town of Battleford.  Together, the two communities are known as "The Battlefords".  North Battleford borders the Rural Municipality of North Battleford No. 437, as well as the North Battleford Crown Colony (census subdivision).

North Battleford Airport: North Battleford Airport, (IATA: YQW, ICAO: CYQW) , is located 1.5 NM east of North Battleford, Saskatchewan, Canada.  It was built during World War II as part of the British Commonwealth Air Training Plan and known as RCAF Station North Battleford.  The station hosted RAF No. 35 Service Flying Training School from 4 September 1941 to 25 February 1944, and then RCAF No. 13 SFTS until 30 March 1945.  Relief airfields were located at Brada and Hamlin.

North Battleford Crown Colony: The North Battleford Crown Colony (2011 population 164) is an unincorporated community within the Rural Municipality of North Battleford No. 437 in Saskatchewan, Canada that is designated a census subdivision by Statistics Canada.  It is adjacent to the City of North Battleford and is home to the Saskatchewan Hospital North Battleford.

Rural Municipality of North Battleford No. 437: North Battleford No. 437, Saskatchewan is a rural municipality of 733 rural residents (2011 census) in the northwestern part of Saskatchewan, Canada.  It comprises the rural area generally to the north and east of the city of North Battleford.  The RM was incorporated December 12, 1910 .

Kiewit Corporation: Kiewit Corporation is an employee-owned Fortune 500 contractor based in Omaha, Nebraska.  Privately held, it is one of the largest contractors in the world.  Recent projects have included several bridge retrofittings in the San Francisco Bay Area, Interstate H-3 project in Hawaii, and building the world's largest geodesic dome at Henry Doorly Zoo in Omaha.  Along with significant mining and off-shore operations, the company also contracts small grading (dirt moving) projects for residential or commercial development.

North Battleford Energy Centre: North Battleford Energy Centre is a natural gas-fired station owned by Northland Power located in the Rural Municipality of North Battleford, Saskatchewan located near the city of North Battleford, Saskatchewan, Canada.  The plant is operating under a 20-year power purchase agreement with SaskPower.  Construction started on the project in June 2010, and the plant commenced commercial operations on June 5, 2013.  The plant was built by Kiewit Construction.  Construction of the centre was expected to cost $700M.

Spy Hill Power Plant: Spy Hill Power Plant is a natural gas-fired station owned by Northland Power, in Spy Hill, Saskatchewan, Canada.  The plant will operate as a power peaking plant, complete with synchronous condense (voltage control), under a 25 year power purchase agreement with SaskPower.  Construction started on the project in 2009, and was completed in October 2011.  The plant was built using two General Electric LM 6000 gas turbines.  Construction of the plant was expected to cost $145 million.

Thorold Co-generation Plant: Thorold Co-generation Plant is a natural gas-fired station owned by Northland Power, brought into operation on March 28, 2010.  The plant also supplies steam to the nearby AbitibiBowater paper mill.  Power is produced under contract to the Ontario Power Authority.

North Battleford station: The North Battleford station is a former railway station in North Battleford, Saskatchewan.  It was built by the Canadian National Railway in 1956 and used as a passenger terminal.  North Battleford no longer receives scheduled passenger rail service (the closest stations are now served by Via Rail station to the south in Biggar and Unity), and the station is now used as office space for CNR, and was once the intercity bus terminal.  The STS Battlefords Bus Depot is now located at 2691 98th Street and is served by the Saskatchewan Transportation Company and Greyhound Canada.

Supporting paragraphs: North Battleford Energy Centre Kiewit Corporation
Answer: Nebraska