Masonry oven India, tandoors are traditional clay ovens, although these days modern electrically fired tandoors are available. The open-topped tandoor is a transitional design between the earth oven and the Roman-plan masonry oven. In the precolumbian Americas, similar ovens were often made of clay or adobe and are now referred to by the Spanish term "horno" (meaning "oven"). Horns are also traditional in the American Southwest. The traditional direct-fired masonry design is often called a "Roman" or "black" oven and dates in Western culture to at least the Roman Republic. It is known as a black oven because the fire generates soot
Oil and gas industry in India in India rose from 156.10 MMT in 2007-08 to 245.36 MMT in 2016-17 with a CAGR of 4.63%. High speed diesel oil accounted for 39.06% of total consumption of all types of petroleum products in 2016-17, followed by Petroleum Coke (12.31%), Petrol (12.21%), LPG (11.11%), and Naphtha (6.80%). The country accounted 1.41% of total world natural gas consumption in 2016-17. The two largest consumers of natural gas are the fertilizer industry (30.38%) and power generation (24.28%). Use of natural gas as a domestic fuel accounted for 14.47% of total consumption. Natural gas is consumed for both energy (58.16%) and non-energy