Historical clue formulations

• Gas, e.g.: Abbr. — 2023-12-31
• Con Ed, e.g.: Abbr. — 2023-09-06
• Gas or elec. — 2021-11-23
• Electricity or water, e.g.: Abbr. — 2021-05-24
• Abbr. that rhymes with "bill," appropriately — 2018-12-02
• Gas or electric: Abbr. — 2018-04-16
• Water, e.g.: Abbr. — 2015-02-28
• Monopoly property: Abbr. — 2014-10-05
• Elec. or water — 2013-12-16
• Sewage co., e.g. — 2011-07-08
• Con Ed, e.g.: Abbr. — 2011-04-17
• Monthly expense: Abbr. — 2010-10-02
• Elec., e.g. — 2010-01-13
• Water co., e.g. — 2009-07-28
• Gas, e.g.: Abbr. — 2009-06-03
• Power co. — 2008-12-30
• Monopoly buy: Abbr. — 2008-11-07
• Electric or water co. — 2008-06-17
• Regulated bus. — 2008-04-27
• Gas, e.g.: Abbr. — 2006-09-19
• Govt.-regulated business — 2006-06-07
• Elec., e.g. — 2006-02-05
• Certain Monopoly sq. — 2005-11-24
• Gas, e.g.: Abbr. — 2004-01-14
• Monopoly square: Abbr. — 2003-11-23
• Gas, say: Abbr. — 2003-03-29
• Electricity or water: Abbr. — 2001-02-13
• Gas, e.g.: Abbr. — 2000-03-18
• Subj. of state regulation — 1998-11-25
• Cautious stock inv. — 1998-05-03
• Monopoly purchase: Abbr. — 1997-12-24
• Gas or elec., e.g. — 1997-04-22
• Elec. company, e.g. — 1996-12-06
• Gas or elec. co. — 1995-08-06