I just finished reading Last Light, by Alex Scarrow and I highly recommend it if you haven’t header of of it before. If you are into fiction centered around post-apocalyptic Britain (think Children of Men, or 28 Days Later), or you are even mildly interested about Peak Oil topics, you will surely enjoy this book as well.
I would have personally enjoyed the book more if it were more oriented toward realism than it currently is. I think the author accelerates a bit too much the serie of events describing the overall degradation of human behavior amidst the catastrophe for the sake of making the story more palatable, more ‘action movie’. Also, I’d have preferred a plausible sociopolitical scenario to trigger the book events, rather than the usual “Bunch Of Evil Guys That Rule The World Without Anybody Knowing”™ plot, which deprives an otherwise well orchestrated plot of some credibility.
Still, opens the mind to a lot of thinking about the current energy situation and definitely encourages the reader to learn more about the topic.
Finally, if you are into Peak Oil & related discussions, my personal recommendation for you to learn more is The Oil Drum . A bit too much for insiders of the oil industry in some occasions, but a very good source of articles anyway. (the book author suggests a website too, but his suggestion seems to point to a dead domain nowadays).
Go grab it.