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: Massimo Moratti (born 16 May 1945) is an Italian petroleum businessman and chairman of the Saras Group, founded in 1962 by his father, industrialist Angelo Moratti. The main production site of the Saras Group is the Sarroch refinery located on the island of Sardinia, one of Europe's only six supersites, with a capacity of 300,000 barrels per day, representing 15% of refining capacity in Italy. In recent years, initially to enable independence of the Sarroch refinery from terms of energy, the Saras Group has entered into the production of electricity and is expanding its production of alternative energy sources, particularly in the field of wind energy, through its subsidiaries Sarlux and Sardeolica, the latter of which is controlled indirectly through the company Eolici Ulassai.

paragraph_text: In 2016, Nebraska became the eighteenth state to have installed over 1,000 MW of wind power capacity. Texas, with over 20,000 MW of capacity, had the most installed wind power capacity of any U.S. state at the end of 2016. Texas also had more under construction than any other state currently has installed. The state generating the highest percentage of energy from wind power is Iowa. North Dakota has the most per capita wind generation. The Alta Wind Energy Center in California is the largest wind farm in the United States with a capacity of 1548 MW. GE Energy is the largest domestic wind turbine manufacturer.

paragraph_text: Oklahoma is the nation's third-largest producer of natural gas, fifth-largest producer of crude oil, and has the second-greatest number of active drilling rigs, and ranks fifth in crude oil reserves. While the state ranked eighth for installed wind energy capacity in 2011, it is at the bottom of states in usage of renewable energy, with 94 percent of its electricity being generated by non-renewable sources in 2009, including 25 percent from coal and 46 percent from natural gas. Oklahoma has no nuclear power. Ranking 13th for total energy consumption per capita in 2009, Oklahoma's energy costs were 8th lowest in the nation.

paragraph_text: Klondike is an unincorporated community in Sherman County, Oregon, United States. It is near the Wasco, Oregon site of the Klondike III Wind Project, Oregon's largest wind energy farm with 176 turbines for wind energy.

paragraph_text: The Octagon Round Barn, Indian Creek Township is an historic building located near Iowa Center in rural Story County, Iowa, United States. It was built in around 1880 as a dairy barn. The octagon-shaped building measures in diameter. The modified hip roof, heavy timber framing, rectangular interior plan, and general purpose use marks this as a design influenced by Lorenzo S. Coffin, who built the first round barn in Iowa. It has been listed on the National Register of Historic Places since 1986. The barn has deteriorated significantly and it is essentially a pile of wood now.

paragraph_text: The Robert Weber Round Barn is a round barn located east of Durand, Illinois, United States along Illinois Route 75 in Harrison Township. The Weber barn was constructed in 1917 and features a roof designed and built by the Haas Brothers, who worked on other area round barns. The barn is in diameter and features a diameter central silo. The design of the Weber Round Barn stands out from other area round barns in its vitrified tile walls, a development used in later period American round barns. The Robert Weber Round Barn was added to the U.S. National Register of Historic Places in 1984.

paragraph_text: The Robert Abell Round Barn, in Logan County near Burnstad, North Dakota, United States, was built in 1942 by Robert Abell. It was listed on the National Register of Historic Places in 1986.

paragraph_text: In 2013, China led the world in renewable energy production, with a total capacity of 378 GW, mainly from hydroelectric and wind power. As of 2014, China leads the world in the production and use of wind power, solar photovoltaic power and smart grid technologies, generating almost as much water, wind and solar energy as all of France and Germany's power plants combined. China's renewable energy sector is growing faster than its fossil fuels and nuclear power capacity. Since 2005, production of solar cells in China has expanded 100-fold. As Chinese renewable manufacturing has grown, the costs of renewable energy technologies have dropped. Innovation has helped, but the main driver of reduced costs has been market expansion.

paragraph_text: The 180 MW Tatanka Wind Farm, is located in Dickey County and McIntosh County, North Dakota, and McPherson County, South Dakota. It is the largest wind farm in North and South Dakota and generates enough renewable energy to power more than 60,000 U.S. homes.

paragraph_text: Kelly Round Barn is a historic round barn located near Halcottsville in Delaware County, New York, United States. It was built in 1899 and is a two-story structure with a low conical roof, approximately 90 feet in diameter. It features a central silo.

paragraph_text: Spain is one of the world's leading countries in the development and production of renewable energy. In 2010 Spain became the solar power world leader when it overtook the United States with a massive power station plant called La Florida, near Alvarado, Badajoz. Spain is also Europe's main producer of wind energy. In 2010 its wind turbines generated 42,976 GWh, which accounted for 16.4% of all electrical energy produced in Spain. On 9 November 2010, wind energy reached an instantaneous historic peak covering 53% of mainland electricity demand and generating an amount of energy that is equivalent to that of 14 nuclear reactors. Other renewable energies used in Spain are hydroelectric, biomass and marine (2 power plants under construction).Non-renewable energy sources used in Spain are nuclear (8 operative reactors), gas, coal, and oil. Fossil fuels together generated 58% of Spain's electricity in 2009, just below the OECD mean of 61%. Nuclear power generated another 19%, and wind and hydro about 12% each.

paragraph_text: Estonia is a dependent country in the terms of energy and energy production. In recent years many local and foreign companies have been investing in renewable energy sources.[citation needed] The importance of wind power has been increasing steadily in Estonia and currently the total amount of energy production from wind is nearly 60 MW while at the same time roughly 399 MW worth of projects are currently being developed and more than 2800 MW worth of projects are being proposed in the Lake Peipus area and the coastal areas of Hiiumaa.

paragraph_text: Portugal has considerable resources of wind and river power, the two most cost-effective renewable energy sources. Since the turn of the 21st century, there has been a trend towards the development of a renewable resource industry and reduction of both consumption and use of fossil fuels. In 2006, the world's largest solar power plant at that date, the Moura Photovoltaic Power Station, began operating near Moura, in the south, while the world's first commercial wave power farm, the Aguçadoura Wave Farm, opened in the Norte region (2008). By the end of 2006, 66% of the country's electrical production was from coal and fuel power plants, while 29% were derived from hydroelectric dams, and 6% by wind energy.In 2008, renewable energy resources were producing 43% of the nation's consumption of electricity, even as hydroelectric production decreased with severe droughts. As of June 2010, electricity exports had outnumbered imports. In the period between January and May 2010, 70% of the national production of energy came from renewable sources.Portugal's national energy transmission company, Redes Energéticas Nacionais (REN), uses sophisticated modeling to predict weather, especially wind patterns, and computer programs to calculate energy from the various renewable-energy plants.

paragraph_text: The Wickfield Round Barn is a historic building located near Cantril in rural Van Buren County, Iowa, United States. Originally called Silvers Sale Pavilion, it was built in 1919 by Alva Hunt for $20,000. The true round barn measures in diameter. Frank Silvers, a successful hog breeder and businessman, operated the largest Hampshire hog farm in the world. The first floor had seating for 700 people. Silvers' business offices were also located on the first floor. The structure is constructed of clay tile and features an aerator. The two-pitch roof features eight dormers on the lower part and four dormers on the upper part of the roof. It has been listed on the National Register of Historic Places since 1986. There are no round barns in Iowa used as sale barns any longer, and this one is used for storage.

paragraph_text: The Ojo Caliente Hot Springs Round Barn is in Ojo Caliente, New Mexico and was built in 1924. It is the only adobe round barn in the United States.

paragraph_text: The J. Whitney Goff Round Barn near Winfred, South Dakota, United States, is a round barn that was built in 1915. It was listed on the National Register of Historic Places in 2004.

paragraph_text: The Altamont Pass wind farm is located in the Altamont Pass of the Diablo Range in Northern California. It is one of the earliest wind farms in the United States. The first wind turbines were placed on the Altamont in the early 1980s by Fayette Manufacturing Corporation on land owned by cattle rancher Joe Jess. The wind farm is composed of 4930 relatively small wind turbines of various types, making it at one time the largest wind farm in the world in terms of capacity. Altamont Pass is still one of the largest concentration of wind turbines in the world, with a capacity of 576 megawatts (MW), producing about 125 MW on average and 1.1 terawatt-hours (TWh) yearly. They were installed after the 1970s energy crisis in response to favorable tax policies for investors.

paragraph_text: The Sparre Barn is a round barn in the city of Nowthen, Minnesota, United States. The barn is located on the west shore of Bass Lake. The basement is constructed of red tile, and the upper level of the barn is sheathed with shiplap siding. The interior space contains a circle of stanchions for feeding cattle, while the upper level has storage for feed and equipment.

paragraph_text: Wind farms are most prevalent in the north and west portion of Iowa. Wind maps show the winds in these areas to be stronger on average, making them better suited for the development of wind energy. Average wind speeds are not consistent from month to month. Wind maps show wind speeds are on average strongest from November through April, peaking in March. August is the month with the weakest average wind speeds. On a daily cycle, there is a slight rise in average wind speeds in the afternoon, from 1 to 6 p.m. Estimates by the National Renewable Energy Laboratory (NREL) indicate Iowa has potentially 570,700 Megawatts of wind power using large turbines mounted on 80 meter towers. Iowa ranks seventh in the country in terms of wind energy generation potential due to the strong average wind speeds in the midsection of the U.S. The Iowa Environmental Mesonet distributes current weather and wind conditions from approximately 450 monitoring stations across Iowa, providing data for modelling and predicting wind power.

Question: where does the state where Wickfield Round Barn is located rank in wind energy production?
Answer: seventh in the country