Yes in fact, Cannabis Oil (BHO, PHO, whatever solvent/solventless) is becoming a very big thing in America! Depending on which state you live in, you could be making a risky decision in buying not correctly purged oil, so here is what you look for if you purchase oil:
First there is a myriad of kinds of oil. Some examples are Shatter, which has a glass consistency, Crumble, self explanatory, Budder, Honeycomb and so on. I myself prefer shatter. If you live in a medical state then obviously try to obtain it through professional methods....but if you live in a non-medical non-legal state then you gotta look out for clarity, color, and smell. Shatter for example should be clear to the point of reading through it and preferably and amber/yellowish color. You dont want brown gross shit.
Also, a much more efficient method of smoking oil would be to buy a rig with a domeless titanium nail and a dome cap. You can most definitely get one at a head shop wherever you live. You will need a blowtorch to use this method, you can grab those at any hardware store. Always remember also to SEASON your titanium nail to get all of the chemical solvents used in the production process. To do this, heat the nail with the blowtorch as red hot as it can go and drop it into some cool water 4-5 times. The color should change on the nail, then its ready for use.
When smoking the oil, heat the titanium nail until red hot, and WAIT AT LEAST 25-30 SECONDS before dabbing your hit. You dont want to hit it when the nail is at peak heat, it stresses the lungs and can actually lead to some medical problems. Just be patient!! After the waiting time, spread the oil evenly on the nail while inhaling and once its on there, put the dome cap on top to trap the remaining vapor that could escape. (Thats the point of waiting, to get more of a vaporization of the oil)
Hope this helped!