Error! You must javascript enabled to use this form. Please enable Javascript in your browser. Kelly Drives Market Key Players 2028 : National Oilwell Varco Inc. The global kelly drives market is projected to grow at a significant pace during the forecast period, thanks to the blooming oil and gas drilling market. View full press release Your Name: Your Email: Subject: Question: We respects your privacy, the information you entered above will not be used to send unsolicited email, and will not be rented or sold to a 3rd party. Your contact information will be shared with the recipient of this message - Privacy Policy Send