Aside from the most prominent building on the site, is the presence of the bare still bases. While the banks of stills on the south side of the site are the most noticeable, there are stills inside, and behind, (east of) the U.S. Yttrium building. There are a total of eleven still bases in the southeast bank, including the walls. These bases held large tanks, (10′ diameter x 30′ in length), which were used to produce various petroleum products. The crude oil was heated to various temperatures to produce motor oil, gasoline, kerosene, and oil for asphalt. The tanks were removed after the refinery ceased operations in 1932.
The still bases shown on this page are numbered from west to east, similar to the other pages on this site. Note: all of the stills and production buildings along the south side of the property were originally constructed by and for the Standard Oil Company of Indiana.

A view of the eastern still battery from the (burned) rear platform of the Midwest control building.

The work of the tagger “MUND” is found all over the site, including this one on the south end of the first still base.
Beautiful photographs! And very thorough research. Thank you, you have inspired many!