Complex sentence: Wellsite information transfer standard markup language (WITSML) is a proposed standard for transmitting technical data between oil companies, service companies, drilling contractors, application vendors and regulatory agencies.
Split into simpler sentences: Wellsite information transfer standard markup language (WITSML) is a proposed standard for transmitting technical data between organisations in the petroleum industry. Groups at which WITSML is targeted include oil companies, service companies, drilling contractors, application vendors and regulatory agencies.