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. (Photo by Toru Hanai/Reuters)

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. (Photo by Ricardo Rojas/Reuters)

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. (Photo by Carlos Jasso/Reuters)

Used oil barrels are collected on a lake side at the barrel market in Treichville, an area of Abidjan on February 12, 2015. (Photo by Luc Gnago/Reuters)

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). (Photo by Rodrigo Garrido/Reuters)

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. (Photo by Tomas Bravo/Reuters)

A government worker inspects old discarded oil barrels that were made into makeshift rescue boats in Manila February 11, 2015. (Photo by Romeo Ranoco/Reuters)

Oil barrels sit empty at a recycling yard in Longmont, Colorado February 2, 2015. (Photo by Rick Wilking/Reuters)

An oil barrel is seen on the Woolwich Ferry as the ferry crosses the River Thames in London January 5, 2015. (Photo by Russell Boyce/Reuters)

Used oil barrels are stacked at a storage facility in Seattle, Washington February 12, 2015. (Photo by Jason Redmond/Reuters)

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. (Photo by Romeo Ranoco/Reuters)

Used oil barrels are seen outside a garage in Cuevas del Becerro, near Malaga, southern Spain February 16, 2015. (Photo by Jon Nazca/Reuters)

An old oil barrel is used as a rubbish bin on the beach in Santa Monica, California February 5, 2015. (Photo by Lucy Nicholson/Reuters)

Fuel vendors rest behind fuel barrels in Aleppo January 13, 2015. (Photo by Nour Kelze/Reuters)

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, Nicaragua February 6, 2015. (Photo by Oswaldo Rivas/Reuters)

Caps of oil barrels are seen outside a house for sale in Granada, Nicaragua February 6, 2015. (Photo by Oswaldo Rivas/Reuters)

A man sells water using a tank on a cart made from an oil barrel in Dala outside Yangon, Myanmar February 10, 2015. (Photo by Soe Zeya Tun/Reuters)

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. (Photo by Stefano Rellandini/Reuters)

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. (Photo by Kim Kyung-Hoon/Reuters)

A man puts bricks into an oil barrel filled with water at a construction site in Colombo February 10, 2015. (Photo by Dinuka Liyanawatte/Reuters)

Men unload oil barrels from a truck at a traditional soap factory in Adjame, an area of Abidjan, on February 13, 2015. (Photo by Luc Gnago/Reuters)

A grill made from an old oil barrel is seen next to graffiti in Brasilandia slum, in Sao Paulo February 11, 2015. (Photo by Nacho Doce/Reuters)

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. (Photo by Arnd Wiegmann/Reuters)

Discarded oil barrels seen being used to protect a wall in a rural area nearby Santiago city, February 16, 2015. (Photo by Ivan Alvarado/Reuters)

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. (Photo by Siegfried Modola/Reuters)

A man beats a sheet of metal cut from an oil barrel to use as recycling material in Kamukunji, Nairobi on February 16, 2015. (Photo by Siegfried Modola/Reuters)

Plants grow in oil barrels that are being used as obstacles to keep vehicles off the curb in San Salvador February 14, 2015. (Photo by Jose Cabezas/Reuters)

A discarded oil barrel is used as a rubbish container in a rural area near Santiago, February 16, 2015. (Photo by Ivan Alvarado/Reuters)

Oil barrels seen being used as obstacles to keep street vendors off the curb at a taxi stand in San Salvador February 14, 2015. (Photo by Jose Cabezas/Reuters)

Discarded oil barrels are used to keep up a dome of a pickup truck in a rural area near Santiago, February 16, 2015. (Photo by Ivan Alvarado/Reuters)

A waiter walks near tables made of oil barrels at a bar in Paranaque, Metro Manila February 12, 2015. (Photo by Erik De Castro/Reuters)

Workers in an engine workshop use an old oil barrel to collect waste oil from the engines they repair in Bogota February 14, 2015. (Photo by Jose Miguel Gomez/Reuters)

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. (Photo by Mariana Bazo/Reuters)

Rebeca Ruiz looks from her room window at a homemade grill fashioned out of an from an oil barrel in Bogota February 14, 2015. (Photo by Jose Miguel Gomez/Reuters)

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. (Photo by Mariana Bazo/Reuters)

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. (Photo by Mariana Bazo/Reuters)

A woman uses old oil barrels as a grill to cook chickens on coals in Mexico City, February 15, 2015. (Photo by Edgard Garrido/Reuters)

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. (Photo by Tomas Bravo/Reuters)

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, Haiti February 11, 2015. (Photo by Andres Martinez Casares/Reuters)

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, Paraguay February 13, 2015. (Photo by Jorge Adorno/Reuters)

Sony Lonrisme cuts a discarded oil barrel in Noailles, an artisan's village in Croix de Bouquets, outskirts of Port-au-Prince, Haiti February 13, 2015. (Photo by Andres Martinez Casares/Reuters)

An old rusted oil barrel is seen in Panama Bay in Panama City January 31, 2015. (Photo by Carlos Jasso/Reuters)