Our History

You've seen our delivery trucks; you know our name. What you might not know is that TCPI continues to apply the same family values we started with in 1978 to our business. What does this mean to you? At Tri-County Petroleum, we guarantee every customer, small or large, is treated with equal respect and attention.

1928

Pierron Oil Company is founded

1968

Carl Lammers joins Pierron Oil Company

1973

John Meckles purchases company. Company is renamed – Highland Pierron Oil Company

1978

Carl Lammers purchases company

1991

Terry Lammers joins company
Company is renamed - Tri-county Petroleum Inc. (TCPI)

2006

Julie Lammers joins TCPI

2007

Carl and Helen Lammers retire from TCPI

2009

Built bulk plant in Red Bud, Ill. and partnered with Select Propane in Red Bud