NEW YORK (TheStreet) -- How will natural gas benefit from higher oil costs, and how should investors play the move?

TheStreet's Jim Cramer told "Mad Money" Research Director Nicole Urken that diesel prices are unlikely to come down because West Texas Intermediate crude prices have now converged with Brent crude prices. This makes diesel even more expensive to use relative to natural gas.

Cramer added that Cummins' ( CMI) new 12-liter natural gas engine is very significant.

He went on to say that Cummins had the right engine, while Chart Industries ( GTLS) has the right equipment. Both stocks made new 52-week highs on Wednesday.

While Clean Energy Fuels ( CLNE) and Wescorp Energy ( WSCE) are both in the field, Cramer said they are not the correct plays.

Cummins and Chart Industries will be the winners when natural gas becomes heavily adopted in 2014.

-- Written by Bret Kenwell in Petoskey, Mich.

Bret Kenwell currently writes, blogs and also contributes to Robert Weinstein's Weekly Options Newsletter. Focuses on short-to-intermediate-term trading opportunities that can be exposed via options. He prefers to use debit trades on momentum setups and credit trades on support/resistance setups. He also focuses on building long-term wealth by searching for consistent, quality dividend paying companies and long-term growth companies. He considers himself the surfer, not the wave, in relation to the market and himself. He has no allegiance to either the bull side or the bear side.

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