Prudhoe Bay Oil Field. The Parshall Oil Field discovery, combined with other factors, including an oil-drilling tax break enacted by the state of North Dakota in ,  shifted attention in the Bakken from Montana to the North Dakota side.
Media in category "Petroleum region maps"
All brands will contain some amount of the extract from the actual fruit, but the amount of the active substance can vary a lot. There are plenty of fly-by-night products around(pretty much all of the ones in local stores) that only offer a very subpar purity.
Often times such supplements(like ones sold at WalMart) only contain 20 or less HCA- even when they are marked as higher(this was the conclusion of a recent study).