Although I'd like to use "obgleich" "obschon" and "obwohl" I'm still hazy on the differences, help?
In studying subordinate conjunctions I noticed that obgleich, obschon, and obwohl all get translated as "although," surely there must be some subtle differences though?

Can you help clarify what those differences are, possibly with example sentences?

Question

Although I'd like to use "obgleich" "obschon" and "obwohl" I'm still hazy on the differences, help?
In studying subordinate conjunctions I noticed that obgleich, obschon, and obwohl all get translated as "although," surely there must be some subtle differences though?

Can you help clarify what those differences are, possibly with example sentences?

Answer

There's no difference in meaning. "Obwohl" is common in spoken and written, "obgleich" rather in written German, "obschon" is hardly ever used nowadays any longer.

Answer

I totally agree with DonHolgo - there is no difference in meaning, even though I hardly use "obgleich" and "obschon" - and I mean, ever. You might read it i a more formal reference (newspaper, law text etc.)

Answer

All 3 are listed as synonyms in the Duden. https://www.duden.de/rechtschreibung/obgleich
obwohl: introduces a restriction, a curtailing. Ich rufe dich heute Abend an. Obwohl – wir sehen uns morgen ja ohnehin. I will call you this evening. But well, anyway we see each other tomorrow.Meaning I will not call you because we see each other tomorrow. 
I could help you better if you would provide some sentences.