adjacent row of wells
21Oil shale extraction — is an industrial process in which kerogen mdash;a mixture of organic chemical compounds (including hydrocarbons) found in oil shale mdash;is converted into synthetic crude oil through pyrolysis. In pyrolysis, oil shale is heated in the absence of …
22San Francisco — This article is about the city and county in California. For other uses, see San Francisco (disambiguation). San Francisco   City and county   City and County of San Francisco …
23Chicago Loop — For the Chicago L feature, see The Loop (CTA). The Loop   Community area   Community Area 32 The Loop …
24Fort Worth, Texas — Fort Worth   City   City of Fort Worth Montage of Fort Worth …
25Execution chamber — Death Chamber redirects here. For the martial arts film, see Shaolin Temple (1976 film). An execution chamber, or death chamber, is a room or chamber in which a legal execution is carried out. Execution chambers are almost always inside the walls …
26Fly system — Fly loft of the Theater Bielefeld in Germany A fly system, flying system or theatrical rigging system, is a system of lines (e.g. ropes), blocks (pulleys), counterweights and related devices within a theatre that enable a stage crew to quickly,… …
27Novak Djokovic — Новак Ђоковић Djokovic at the Rod Laver Arena during the 2008 Australian Open where he won his first grand slam. Country …
28mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
29Downtown Houston —   Business District   Houston Downtown Skyline Country …
30Columbia Slough — Coordinates: 45°38′36″N 122°46′07″W / 45.64333°N 122.76861°W / 45.64333; 122.76861 …
