Denbury Resources Inc

Since July 2011, the S&P 500 Index has gained about 62% and touched its high of 2130 in July 2015. During the same period, gold (GLD) has lost about 92%.

Denbury Resources primarily extracts oil and gas via carbon dioxide–based enhanced oil recovery (or EOR). This is also called tertiary oil recovery.

ConocoPhillips produces oil and gas via primary or secondary recovery methods. Denbury Resources mainly uses a tertiary, EOR method to produce its oil.

SandRidge is expanding its low-cost multilateral program and is successfully extending its mid-continent resource base with Chester and Woodford production.