Your various replies made me curious, so I went to the Nationa Conference of Bar Examiner's web site and learned that:
All but 4 jurisdicitons require the MPRE (professional responsibility) which is 2 hours and 5 minutes, and is usually taken separately.
The Multistate Bar Exam itself is 6 hours.
The NCBE also offers subject specific essay examins, of 30 min's each, in a variety of common subjects like Criminal or Civil Procedure, Con Law, Business Associations, etc. These are substituted in whole or in part, I assume, for the state-specific essays I faced on Texas Oil & Gas, etc.
There is also the MPT, or Performance examintion, which consists of 2 fact situations which are analyzed at 90min's each.
Some states, like Texas and Alabama, have a state specific essay or more on state procedure.
For more information, and links to states, go to
http://www.ncbex.org/