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What Falling Oil Prices Are Doing To America's 10 Richest Oil Tycoons

david koch
david koch

Jamie McCarthy/Getty Images David Koch in New York. You win some, you lose some.

As oil prices continue to fall, some of America's richest oil tycoons have stayed on top and continued making money — while others have seen their fortunes cut in half.

According to Wealth-X, four of the top 10 oil billionaires have actually increased their net worth since oil prices started to decline last year.

David and Charles Koch top the list with a 7% increase in net worth since June, which Wealth-X attributes to the diversification of their company's investment portfolio. Elaine Marshall, who holds about 15% of Koch Industries, saw her net worth increase by 6%. Richard Kinder of Kinder Morgan Partners increased his net worth the most, by 23%.

The biggest loser among the top 10 by far was Continental Resources CEO Harold Hamm, currently caught in a bitter and costly divorce battle, who lost 50% of his net worth since June. Sisters Milane Frantz, Randa Williams, and Dannine Avara of the Duncan energy empire all saw their net worth decline by 11%.

Here's the full list from Wealth-X:

1. David Koch

  • Net worth in June 2014: $42 billion

  • Current net worth: $44.9 billion

  • Change in net worth: 7%

2. Charles Koch

  • Net worth in June 2014: $42 billion

  • Current net worth: $44.8 billion

  • Change in net worth: 7%

3. George Kaiser

  • Net worth in June 2014: $13.3 billion

  • Current net worth: $13.2 billion

  • Change in net worth : -1%

4. Richard Kinder

  • Net worth in June 2014: $9.2 billion

  • Current net worth: $11.3 billion

  • Change in net worth : 23%

5. Harold Hamm

  • Net worth in June 2014: $18.5 billion

  • Current net worth: $9.3 billion

  • Change in net worth : -50%

6. Elaine Marshall

  • Net worth in June 2014: $7.8 billion

  • Current net worth: $8.3 billion

  • Change in net worth : 6%

7. Ray Hunt

  • Net worth in June 2014: $6 billion

  • Current net worth: $5.6 billion

  • Change in net worth : -7%

8. Milane (Duncan) Frantz

  • Net worth in June 2014: $6.2 billion

  • Current net worth: $5.5 billion

  • Change in net worth : -11%

9. Randa (Duncan) Williams

  • Net worth in June 2014: $6.2 billion

  • Current net worth: $5.5 billion

  • Change in net worth : -11%

10. Dannine (Duncan) Avara

  • Net worth in June 2014: $6.2 billion

  • Current net worth: $5.5 billion

  • Change in net worth : -11%


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