A few of you still reading this infrequent drivvle of mine have mentioned the writing of options over commodity futures. I don't have enough experience with commodity options to be authoritative, but I have read what I think is an excellent book on the topic and it deals extensively with written options on futures.
This book is written by a bloke called Stuie Johnston. Some have criticized it for its conversational and irreverent writing style, but I found it not only occasionally hilarious, but very good at setting out a philosophy and methodology for premium collection on commodity futures.
Be prepared for a few statistics and discussion on seasonality... and especially what Stu refers to as NON-seasonal trades.
Check it out
He also runs a very good seasonal trading database site that if/when I have a crack at this, I will definitely subscribe to. www.timeandtiming.com (no financial connection blah blah)