NEW YORK (TheStreet) -- Shares of Chevron (CVX) - Get Report are down 1.2% following a downgrade to sell from hold by an analyst at Goldman Sachs. Goldman also lowered its price target to $99 from $111.

Analysts question how quickly Chevron can raise its dividend going forward, given its current dividend coverage, TheStreet's Jim Cramer, portfolio manager of the Action Alerts PLUS portfolio, said on CNBC's "Mad Dash" segment. 

Instead, the analysts argue that Exxon Mobil (XOM) - Get Report is a better buy at the moment, he added. However, Cramer says that analysts at Goldman Sachs seem to be a little too pessimistic on their oil forecasts. 

Regardless, Chevron is a "great American company," he said, pointing out that John Stumpf, chairman and CEO of Wells Fargo (WFC) - Get Report and a Chevron board member, bought a whopping $19.46 million worth of Chevron stock. 

So even though the company has stopped buying back its own shares, it has not prevented large buys from insiders

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Turning to Yelp (YELP) - Get Report, analysts at Piper Jaffray downgraded the stock to neutral from overweight and lowered their price target to $46 from $70. 

There's speculation that Yahoo! (YHOO) could ultimately buy Yelp following the latter's massive selloff this year. However, Yahoo! first needs to spinoff its stakes in Alibaba (BABA) - Get Report and Yahoo! Japan, Cramer said. 

Instead of Yahoo!, Yelp could perhaps be a better fit with GrubHub (GRUB) - Get Report, Expedia (EXPE) - Get Report or TripAdvisor (TRIP) - Get Report, Cramer reasoned. It's all about taking on Google (GOOGL) - Get Report at this point, he concluded.

At the time of publication, Cramer's Action Alerts PLUS had a long position in WFC and GOOGL.