Devon Energy Corporation (4.3%)
Parsley Energy Inc. Class A (4%)
Marathon Petroleum Corporation (3.9%)
Occidental Petroleum Corporation (3.8%)
Marathon Oil Corporation (3.7%)
Concho Resources Inc. (3.7%)
WPX Energy Inc. (3.7%)
Diamondback Energy Inc. (3.7%)
Valero Energy Corporation (3.5%)
EOG Resources Inc. (3.5%)
Other (62%)
4.3%
4%
3.9%
3.8%
3.7%
3.7%
3.7%
3.7%
3.5%
3.5%
62%