FYI – MLM has a lot of Ohio River Terminals that are mostly solids/aggreates (89% business income) but also has terminals that do some petcoke, petroleum,cement, steel & other petcoke related industry terminals.
Here is link to a PDF list of Ohio River – someMLM terminals @ http://www.lrp.usace.army.mil/navchart/oh/terminals.pdf
Not so sure that this is something Vulcan is completely for this (perhaps more a hostile takeover?). Vulcan also has ~319 terminals with most in aggreates & asphalt areas, but like Martin Marietta some in petroleum/petcoke/steel & other petcoke related industries
Regards