Sadao Kimbara (L) rides on a Honda motorcycle with a sidecar he made out of an oil barrel as his grandson Rui smiles in the sidecar in Ome, outskirts of Tokyo February 14, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Toru Hanai (JAPAN - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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Recycling artist Nicolas Gomez checks the strings of a cello he has made out of an oil barrel for the Orchestra of Recycled Instruments of Cateura, in Cateura February 13, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Jorge Adorno (PARAGUAY - Tags: BUSINESS SOCIETY ENERGY)

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Sony Lonrisme cuts a discarded oil barrel in Noailles, an artisan's village in Croix de Bouquets, outskirts of Port-au-Prince February 13, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Andres Martinez Casares (HAITI - Tags: BUSINESS SOCIETY ENERGY)

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Jockey students practice their racing position on a horse simulator made from an oil barrel, known as "Pangal", at The Jockeys School in Panama City February 11, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Carlos Jasso (PANAMA - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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Used oil barrels are seen outside a garage in Cuevas del Becerro, near Malaga, southern Spain February 16, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Jon Nazca (SPAIN - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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An art installation made of discarded metal oil barrels is pictured at the Instituto Mexicano del Petroleo (Mexican Institute of Petroleum) metro station in Mexico City, February 15, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Tomas Bravo (MEXICO - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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A woman uses old oil barrels as a grill to cook chickens on coals in Mexico City, February 15, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Edgard Garrido (MEXICO - Tags: BUSINESS SOCIETY ENERGY)

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Used oil barrels are collected on a lake side at the barrel market in Treichville, an area of Abidjan on February 12, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Luc Gnago (IVORY COAST - Tags: BUSINESS SOCIETY ENERGY)

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A man polishes the sharp edges of a oil barrel as he makes a grill in Valparaiso city, northwest of Santigo February 17, 2015. Once the barrel has been made into a grill it can be sold for for about 75,000 pesos ($120). Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Rodrigo Garrido (CHILE - Tags: BUSINESS SOCIETY ENERGY)

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Men stack oil barrels at a depot in Santo Domingo February 6, 2015. A group of resident Haitians sell the metal barrels for $9 each to be used as garbage bins, or made into grills or to store water. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Ricardo Rojas (DOMINICAN REPUBLIC - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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A worker submerges a tyre in a an old discarded oil barrel which is used as a water basin as he cleans it and checks for holes in front of his vulcanising shop in Manila February 10, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Romeo Ranoco (PHILIPPINES - Tags: BUSINESS SOCIETY ENERGY)

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Used oil barrels are stacked at a storage facility in Seattle, Washington February 12, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Jason Redmond (UNITED STATES - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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An oil barrel is seen on the Woolwich Ferry as the ferry crosses the River Thames in London January 5, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Russell Boyce (BRITAIN - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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Oil barrels sit empty at a recycling yard in Longmont, Colorado February 2, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Rick Wilking (UNITED STATES - Tags: BUSINESS SOCIETY ENERGY)

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A government worker inspects old discarded oil barrels that were made into makeshift rescue boats in Manila February 11, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Romeo Ranoco (PHILIPPINES - Tags: BUSINESS SOCIETY ENERGY)

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Decorations made out of the metal of discarded oil barrels are seen for sale at a stand in Avenue John Brown in Port-au-Prince February 11, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Andres Martinez Casares (HAITI - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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A truck is loaded with oil barrels that are used for collecting and recycling used oil from garages is parked in Villa El Salvador on the outskirts of Lima, February 12, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/ Mariana Bazo (PERU - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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A sculpture made of discarded metal oil barrels is seen at the Instituto Mexicano del Petroleo (Mexican Institute of Petroleum) metro station in Mexico City, February 15, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Tomas Bravo (MEXICO - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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Cayo Malpartida cooks chicken and pork on a makeshift grill fashioned out of an oil barrel at Rendon Restaurant in Lurin, on the outskirts of Lima, February 15, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/ Mariana Bazo (PERU - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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Workers in an engine workshop use an old oil barrel to collect waste oil from the engines they repair in Bogota February 14, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Jose Miguel Gomez (COLOMBIA - Tags: BUSINESS SOCIETY ENERGY)

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An oil barrel used for smelting aluminium to make homemade pots is seen in an abandoned smelting house in the indigenous community town of Pacaya February 6, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. Reuters/Oswaldo Rivas (NICARAGUA - Tags: BUSINESS SOCIETY ENERGY)

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A man sells water using a tank on a cart made from an oil barrel in Dala outside Yangon February 10, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Soe Zeya Tun (MYANMAR - Tags: BUSINESS SOCIETY ENERGY)

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Rebeca Ruiz looks from her room window at a homemade grill fashioned out of an from an oil barrel in Bogota February 14, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Jose Miguel Gomez (COLOMBIA - Tags: BUSINESS SOCIETY ENERGY)

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Empty oil barrels that are for sale are stacked outside a hardware store in Villa El Salvador on the outskirts of Lima, February 12, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/ Mariana Bazo (PERU - Tags: BUSINESS SOCIETY ENERGY)

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Discarded oil barrels are used to keep up a dome of a pickup truck in a rural area near Santiago, February 16, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Ivan Alvarado (CHILE - Tags: BUSINESS SOCIETY ENERGY)

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A waiter walks near tables made of oil barrels at a bar in Paranaque, Metro Manila February 12, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Erik De Castro (PHILIPPINES - Tags: BUSINESS SOCIETY ENERGY)

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Plants grow in oil barrels that are being used as obstacles to keep vehicles off the curb in San Salvador February 14, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Jose Cabezas (EL SALVADOR - Tags: BUSINESS SOCIETY ENERGY)

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Oil barrels seen being used as obstacles to keep street vendors off the curb at a taxi stand in San Salvador February 14, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Jose Cabezas (EL SALVADOR - Tags: BUSINESS SOCIETY ENERGY)

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A discarded oil barrel is used as a rubbish container in a rural area near Santiago, February 16, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Ivan Alvarado (CHILE - Tags: BUSINESS SOCIETY ENERGY)

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A woman stands by a local shop that sells dishes and other utensils made from recycled metal cut from oil barrels in Kamukunji, Nairobi on February 16, 2015. ASaudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Siegfried Modola (KENYA - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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A man beats a sheet of metal cut from an oil barrel to use as recycling material in Kamukunji, Nairobi on February 16, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Siegfried Modola (KENYA - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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Discarded oil barrels seen being used to protect a wall in a rural area nearby Santiago city, February 16, 2015. ASaudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Ivan Alvarado (CHILE - Tags: BUSINESS SOCIETY ENERGY)

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Men unload oil barrels from a truck at a traditional soap factory in Adjame, an area of Abidjan, on February 13, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Luc Gnago (IVORY COAST - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)


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An old oil barrel is used as a rubbish bin beside a mountain road near the village of Schindellegi south of Zurich February 13, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: BUSINESS SOCIETY ENERGY)

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A grill made from an old oil barrel is seen next to graffiti in Brasilandia slum, in Sao Paulo February 11, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Nacho Doce (BRAZIL - Tags: BUSINESS SOCIETY ENERGY)

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Vibrazioni's art design owner Alberto (L) cuts an oil barrel as Riccardo works on a Harley Davidson motorbike personalised with parts of an oil barrel, in Massa Lombarda central Italy, February 11, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Stefano Rellandini (ITALY - Tags: BUSINESS SOCIETY ENERGY)

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A man puts bricks into an oil barrel filled with water at a construction site in Colombo February 10, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Dinuka Liyanawatte (SRI LANKA - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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A boy walks past an oil barrel which is being used as a water bucket at a car wash in a migrant workers' village in Beijing February 12, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Kim Kyung-Hoon (CHINA)

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Caps of oil barrels are seen outside a house for sale in Granada, Nicaragua February 6, 2015 Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. Reuters/Oswaldo Rivas (NICARAGUA - Tags: BUSINESS SOCIETY ENERGY)

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An old rusted oil barrel is seen in Panama Bay in Panama City January 31, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Carlos Jasso (PANAMA - Tags: BUSINESS SOCIETY ENERGY TPX IMAGES OF THE DAY)

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Fuel vendors rest behind fuel barrels in Aleppo January 13, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Nour Kelze (SYRIA - Tags: BUSINESS SOCIETY ENERGY)

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An old oil barrel is used as a rubbish bin on the beach in Santa Monica, California February 5, 2015. Saudi Arabia's oil exports have risen in February in response to stronger demand from customers. As OPEC's top producer battles for market share Reuters photographers around the globe have been photographing oil barrels to document how they are utilised once the fuel has been used. REUTERS/Lucy Nicholson (UNITED STATES - Tags: BUSINESS SOCIETY ENERGY)

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