Off goes CLB. The stock tumbled today. Here's what's happening:

 Shares of Core Laboratories N.V. (CLB) are trading -7.5% lower at a price of $15.40 at the time of this writing. The stock which is related to the processing of oil, fell broadly with the sector. The company also does business in Russia and Ukraine, which may have led to the outsize drop relative to peers.

Core Laboratories N.V. has been trading between a 52-week high of $37.06 and a 52-week low of $15.3. The stock has a market cap of $710 Million.

Core Laboratories N.V. is a leading provider of proprietary and patented reservoir description and production enhancement services and products used to optimize petroleum reservoir performance. The Company has over 70 offices in more than 50 countries and is located in every major oil-producing province in the world.