1 EXHIBIT 4.6 WARRANT AGREEMENT THIS AGREEMENT dated as of November 1, 1990, among MIDLAND RESOURCES, INC., a Texas corporation (the "Company") and Stock Transfer Company of America, Inc. (the "Warrant Agent"). W I T N E S S E T H: WHEREAS, the...Warrant Agreement • December 10th, 1999 • Vista Energy Resources Inc • Crude petroleum & natural gas • Texas
FORM OF ASSIGNMENT AND ASSUMPTION AGREEMENTAssignment and Assumption Agreement • December 10th, 1999 • Vista Energy Resources Inc • Crude petroleum & natural gas • Delaware
FORM OF AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENTRegistration Rights Agreement • December 10th, 1999 • Vista Energy Resources Inc • Crude petroleum & natural gas • Delaware
