5. Oil equipment and service provider National Oilwell Varco reported adjusted earnings of 13 cents per share in fourth-quarter 2019, missing the Zacks Consensus Estimate of 16 cents as North American drillers scale back their production growth plans, leaving less scope of work for the likes of National Oilwell Varco. However, the bottom line improved from the year-ago earnings of 3 cents. Particularly, better-than-expected revenue contribution from the Rig Technologies and the Wellbore Technologies segments led to this outperformance.