According to GuruFocus Insider Data, these are the largest CEO buys during the past week. The overall trend of CEOs is illustrated in the chart below:

Continental Resources Inc (CLR, Financial): CEO & Chairman, 10% Owner Harold Hamm Bought 139,621 Shares

CEO & Chairman, 10% Owner of Continental Resources Inc (CLR) Harold Hamm bought 139,621 shares on 03/10/2015 at an average price of $41.30. Continental Resources Inc was originally formed in 1967. Continental Resources Inc has a market cap of $15.36 billion; its shares were traded at around $41.30 with a P/E ratio of 15.70 and P/S ratio of 3.19. Continental Resources Inc had an annual average earnings growth of 55.40% over the past 5 years.

Continental Resources recently announced fourth quarter and full-year 2014 operating and financial results. Net income for the quarter ended December 31, 2014 was $114.0 million, or $0.31 per diluted share, compared with net income of $132.8 million, or $0.36 per diluted share, for the fourth quarter of 2013.

Michael Price (Trades, Portfolio) bought 200,000 shares in the quarter that ended on 12/31/2014, which is 0.94% of the $819 million portfolio of MFP Investors LLC. George Soros (Trades, Portfolio) bought 349,468 shares in the quarter that ended on 12/31/2014, which is 0.15% of the $9.16 billion portfolio of Soros Fund Management LLC. Meridian Funds (Trades, Portfolio) owns 370,200 shares as of 06/30/2013, a decrease of 22.39% of from the previous quarter. This position accounts for 1.2% of the $2.68 billion portfolio of Meridian Fund.

SVP, Exploration Glen A Brown sold 0 shares of CLR stock on 10/01/2014 at the average price of 0. Glen A Brown owns at least 44,798 shares after this.

Kinder Morgan, Inc. (KMI, Financial): Chairman and CEO Richard D Kinder Bought 100,000 Shares

Chairman and CEO of Kinder Morgan, Inc. (KMI) Richard D Kinder bought 100,000 shares on 03/13/2015 at an average price of $39.92. Kinder Morgan, Inc., is a midstream and energy company formed in August 23, 2006. Kinder Morgan, Inc. has a market cap of $85.03 billion; its shares were traded at around $39.92 with a P/E ratio of 41.80 and P/S ratio of 2.73. The dividend yield of Kinder Morgan, Inc. stocks is 4.36%.

Glenn Greenberg (Trades, Portfolio) bought 4,193,877 shares in the quarter that ended on 12/31/2014, which is 6.2% of the $2.87 billion portfolio of Brave Warrior Advisors, LLC. Ruane Cunniff (Trades, Portfolio) bought 9,630 shares in the quarter that ended on 12/31/2014, which is 0.0021% of the $19.63 billion portfolio of Ruane, Cunniff & Goldfarb Inc. Ken Fisher (Trades, Portfolio) bought 9,569 shares in the quarter that ended on 12/31/2014, which is 0.0008% of the $48.37 billion portfolio of Fisher Asset Management, LLC.

VP (President, Terminals) John W Schlosser sold 0 shares of KMI stock on 12/05/2014 at the average price of 0. John W Schlosser owns at least 307,792 shares after this.

Tallgrass Energy Partners LP (TEP, Financial): President and CEO David G Jr Dehaemers Bought 28,600 Shares

President and CEO of Tallgrass Energy Partners LP (TEP) David G Jr Dehaemers bought 28,600 shares during the past week at an average price of $46.94. Tallgrass Energy Partners LP is a growth-oriented Delaware limited partnership formed by Tallgrass Development to own, operate, acquire and develop midstream energy assets in North America. Tallgrass Energy Partners LP has a market cap of $2.3 billion; its shares were traded at around $46.94 with a P/E ratio of 34.70 and P/S ratio of 5.89. The dividend yield of Tallgrass Energy Partners Lp stocks is 3.41%.

Ron Baron (Trades, Portfolio) owns 90,715 shares as of 12/31/2014, which accounts for 0.016% of the $24.95 billion portfolio of Baron Funds.

See remarks Richard L Bullock bought 46 shares of TEP stock on 02/13/2015 at the average price of 48.98. Richard L Bullock owns at least 32,172 shares after this. The price of the stock has decreased by 4.16% since.

Helix Energy Solutions Group Inc (HLX, Financial): PRESIDENT & CEO Owen E Kratz Bought 71,500 Shares

PRESIDENT & CEO of Helix Energy Solutions Group Inc (HLX) Owen E Kratz bought 71,500 shares on 03/09/2015 at an average price of $13.48. Helix Energy Solutions Group Inc was incorporated in the state of Minnesota in 1979. Helix Energy Solutions Group Inc has a market cap of $1.43 billion; its shares were traded at around $13.48 with a P/E ratio of 7.30 and P/S ratio of 1.28.

HLX recently reported net income of $8.0 million, or $0.08 per diluted share, for the fourth quarter of 2014 compared to net income of $36.5 million, or $0.35 per diluted share, for the same period in 2013 and net income of $75.6 million, or $0.71 per diluted share, in the third quarter of 2014.

John Keeley (Trades, Portfolio) owns 2,227,530 shares as of 12/31/2014, which accounts for 0.97% of the $5 billion portfolio of Keeley Asset Management Corp.

Executive Vice President & CFO Anthony Tripodo sold 8,037 shares of HLX stock on 11/13/2014 at the average price of 26.83. Anthony Tripodo owns at least 164,127 shares after this. The price of the stock has decreased by 49.76% since.

Marathon Oil Corp (MRO, Financial): President and CEO Lee M Tillman Bought 28,791 Shares

President and CEO of Marathon Oil Corp (MRO) Lee M Tillman bought 28,791 shares on 03/10/2015 at an average price of $25.78. Marathon Oil Corp was incorporated in 2001. The Company is an independent international energy company engaged in the exploration, production and marketing of liquid hydrocarbons and natural gas, production and marketing of products manufactured from natural gas and oil sands mining with operations in the U. Marathon Oil Corp has a market cap of $17.4 billion; its shares were traded at around $25.78 with a P/E ratio of 5.80 and P/S ratio of 1.48. The dividend yield of Marathon Oil Corp stocks is 3.18%.

Marathon Oil recently reported full-year 2014 adjusted net income from continuing operations of $1.16 billion, or $1.70 per diluted share, and adjusted net income of $1.729 billion, or $2.53 per diluted share. Reported income from continuing operations for full-year 2014 was $969 million, or $1.42 per diluted share, and reported net income was $3.046 billion, or $4.46 per diluted share.

John Hussman (Trades, Portfolio) bought 4,500 shares in the quarter that ended on 12/31/2014, which is 0.013% of the $1.01 billion portfolio of Hussman Strategic Advisors, inc. David Dreman (Trades, Portfolio) owns 13,674 shares as of 12/31/2014, which accounts for 0.032% of the $1.22 billion portfolio of Dreman Value Management.

Vice President (See Remarks) Gary Eugene Wilson sold 0 shares of MRO stock on 11/12/2014 at the average price of 0. Gary Eugene Wilson owns at least 6,392 shares after this.