A monopoly with competition: "Shares of rival ticket brokers jumped on the news, with StubHub Holding Inc. climbing as much as 5% and Vivid Seats Inc. rising as much as 9.1%."
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https://api.eia.gov/series/?api_key=<your API key>&series_id=EBA.TEX-ALL.NG.COL.HL;EBA.TEX-ALL.NG.WAT.HL;EBA.TEX-ALL.NG.NG.HL;EBA.TEX-ALL.NG.NUC.HL;EBA.TEX-ALL.NG.OTH.HL;EBA.TEX-ALL.NG.SUN.HL;EBA.TEX-ALL.NG.WND.HL&start=20210101&end=20210401
(Get an API key for the second URL from https://www.eia.gov/opendata/commands.php)