February 27, 2018 – Page 2

Continental Resources Announces Rory R. Sabino As New Vice President For Investor Relations

February 27, 2018

Continental Resources Announces Rory R. Sabino As New Vice President For Investor Relations

Nabors Announces FY 2017 and Fourth Quarter Results

February 27, 2018

Nabors Announces FY 2017 and Fourth Quarter Results

Jagged Peak CEO Joseph Jaggers to Retire in Late March

February 27, 2018

Jagged Peak Energy Inc. (ticker: JAG) Chairman, President and CEO Joseph N. Jaggers said that he plans to retire at the end of March 2018 for health and personal reasons. Following an orderly transition, current independent director James J. Kleckner will become the company’s president and CEO. Also, as part of the succession plan, current company director Charles D. Davidson,

Carrizo Turns to Multipad Completions in Eagle Ford

February 27, 2018

Higher-than-expected Delaware production is both a blessing and curse Carrizo Oil & Gas (ticker: CRZO) reported fourth quarter results and reserves today, announcing a net loss of $23.4 million, or ($0.29) per share. Carrizo earned a total of $78.5 million in 2017, far above the company’s net loss of $675.5 million in 2016. Carrizo produced 62.4 MBOEPD this quarter, above

PDC Expects to be Free Cash Flow Positive in 2H 2018

February 27, 2018

Achieved 44% yearly production growth PDC Energy (ticker: PDCE) announced fourth quarter results and reserves today, showing earnings of $77.6 million, or $1.18 per share. The company reported a net loss for the full year of $127.5 million, or ($1.94) per share. PDC’s results this quarter saw a boost from the new tax law, which reduced the company’s deferred tax