Use of toxic acid puts millions at risk

By Jim Morris and Chris Hamby

A 2009 explosion in Corpus Christ sheds light on danger of toxic acid cloud

Related to this story

IMPACT: Refinery's use of toxic chemical spurs hearing

By Jim Morris

Regulatory flaws, repeated violations put oil refinery workers at risk

By Jim Morris, Chris Hamby and M.B. Pell

BP pays another fine for Texas refinery

By Amy Biegelsen

The forgotten ones: Few remedies for injured contractors

By Jim Morris

Excerpts from this story referencing "Citgo HF":

"… nt came closest to becoming a full-scale catastrophe.The flash fire in the Citgo HF alkylation unit, captured on a security camera, severely injured worker Ga …"