Historical clue formulations

• Lead-in to dollar or chemical — 2025-11-16
• Rock: Prefix — 2015-05-16
• ___-Canada (northern gas station chain) — 2013-06-09
• Prefix with chemical — 2012-11-16
• Oil industry prefix — 2008-05-05
• Prefix with dollars — 2006-08-15
• Prefix with dollars — 2005-08-18
• Prefix with chemical — 2003-03-15
• Prefix with dollars — 1994-05-25