Any new reserves credited to a previously producing reservoir because of enlargement of its proved area. This enlargement in proved area is usually due to new well drilling outside of the previously [..]

  Additions to an enterprise's proved reserves that result from(1) extension of the proved acreage of previously discovered (old) reserves through additional drilling in periods subsequent to dis [..]

See Notification of Delay.

Additional lifting surfaces added to the top planes

the three-letter suffix that is part of a URL. For example, in the URL www.archives.gov, the extension is .gov. Other commonly used extensions include .com, .edu, and .org.

 .bin, .eps, .gif, .hqx, .jpg, .pdf, .sea, .tif, .sit, .zip, etc. Extensions can be almost anything, but commonly refer to the type of file. On the DOS/Windows platform for example, an .exe extension [..]

The ninth, eleventh and thirteenth of a chord. Fake Book: A collection of Jazz charts, published without paying royalties and thus illegal (not in the Public Domain.) For decades, a book called '1000 Standard Tunes' circulated; you can still see its grossly simplified charts, written three to a page. Some 25 years ago the "Real Book& [..]

Files are identified by a three or four letter or number code, called an extension. This comes after the full stop following the filename. Common types include .doc and .txt for word-processor documents. Files ending in .gif and .jpg generally contain images. Files ending in .exe and .com usually contain executable programs which load into memory a [..]

The area of design made as a cutout that extends beyond the basic rectangular space of an advertising structure.

Specialized structures of the Cell that extend the Cell Membrane and project out from the Cell surface.

an arranged sub-tour offered optionally before or after a tour or cruise at an extra charge

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