A look at the weighted underlying holdings of the SPDR S&P Oil & Gas Exploration & Production ETF (XOP) shows an impressive 31.2% of holdings on a weighted basis have experienced insider buying within the past six months.

START SLIDESHOW:
10 ETFs With Stocks That Insiders Are Buying »

RSP Permian Inc. ( RSPP), which makes up 1.39% of the SPDR S&P Oil & Gas Exploration & Production ETF (XOP), has seen 2 directors and officers purchase shares in the past six months, according to the recent Form 4 data. The ETF holds a total of $25,143,066 worth of RSPP, making it the #17 largest holding. The table below details the recent insider buying activity observed at RSPP:

RSPP — last trade: $28.51 — Recent Insider Buys:

Purchased Insider Title Shares Price/Share Value
12/09/2014 Steven D. Gray Chief Executive Officer 20,000 $20.34 $406,800.00
12/17/2014 Scott K. McNeill Chief Financial Officer 2,500 $20.84 $52,100.00

And Kosmos Energy Ltd ( KOS), the #38 largest holding among components of the SPDR S&P Oil & Gas Exploration & Production ETF (XOP), shows 3 directors and officers as recently filing Form 4's indicating purchases. The ETF holds $22,087,009 worth of KOS, which represents approximately 1.22% of the ETF's total assets at last check. The recent insider buying activity observed at KOS is detailed in the table below:

KOS — last trade: $8.84 — Recent Insider Buys:

Purchased Insider Title Shares Price/Share Value
09/05/2014 Jason Doughty GC & SVP, Legal, HR and Admin. 5,100 $9.80 $49,980.00
09/05/2014 Christopher James Ball SVP, Planning and Bus. Dev. 10,000 $9.81 $98,100.00
09/05/2014 Chris Tong Director 11,000 $9.77 $107,470.00