TGF MANAGEMENT EXITS ORION MARINE GROUP

Austin, Texas, June 5, 2007 - TGF Management Corp. ("TGFM") is pleased to announce the recent sale of its stock in Orion Marine Group ("Orion"). TGFM and its investment partner, Austin Ventures ("AV"), a venture and growth equity firm, invested a combined $31.5 million in the acquisition of Orion in October 2004 and received $213.7 million in proceeds upon exit, generating a return of 6.8 times their investment. Friedman, Billings, Ramsey & Co., Inc., acted as financial advisor to Orion with respect to the transaction.

Orion Marine Group, headquartered in Houston, Texas, is a leading marine specialty contractor serving the heavy civil marine infrastructure market. Orion provides a broad range of marine construction and specialty services on, over, and under the water along the Gulf Coast, the Atlantic Seaboard, and the Caribbean Basin.

About TGF Management
TGF Management currently manages in excess of $700 million on behalf of the Texas Growth Fund and its newest investment fund, Southwest Opportunity Partners, L.P. TGFM is one of the oldest and most active private equity firms in the Southwest, focusing on the acquisition of middle market companies in the region. For further information, contact Vernon Bryant at 512.322.3100 or visit www.tgfmanagement.com.

About Austin Ventures
Austin Ventures has been working with talented entrepreneurs to build valuable companies since 1979. With $3 billion under management, AV is the most active venture and growth equity firm in Texas, and one of the most established in the nation. With a focus on business services, information services, integrated media, computer and communications hardware, and enterprise software, Austin Ventures invests at all stages of company development, from $100,000 "planned experiments" to $50+ million investments in management buyouts. Visit www.austinventures.com for more information.

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Contacts:

Vernon Bryant
512.322.3100
Located in Austin, Texas. For more information, please contact us.