Exhibit 4 STOCKHOLDERS AGREEMENT THIS STOCKHOLDERS AGREEMENT (this "Agreement") is made this 16th day of January, 1997, by and among Robert A. Buschman and Guy Bob Buschman, in their capacities as stockholders, (the "Founders"), Rio Grande, Inc., a...Stockholders Agreement • January 27th, 1997 • Koch Industries Inc • Crude petroleum & natural gas • Delaware
Contract Type FiledJanuary 27th, 1997 Company Industry Jurisdiction
RECITALS3 Registration Rights Agreement • January 27th, 1997 • Koch Industries Inc • Crude petroleum & natural gas • Texas
Contract Type FiledJanuary 27th, 1997 Company Industry Jurisdiction
RECITALSPreferred Stock Purchase Agreement • January 27th, 1997 • Koch Industries Inc • Crude petroleum & natural gas • Texas
Contract Type FiledJanuary 27th, 1997 Company Industry Jurisdiction