Jim Cramer said to ignore headlines about oil inventory being at a high, on his

"RealMoney" radio show Friday, adding that there is a communication problem between Wall Street and oil companies.

What Wall Street believes about oil companies is not the same as what the oil companies think about each other, he said.

Another reason Cramer gave for not taking "scary" oil headlines into consideration: the news on Friday that oil and gas producer

Anadarko Petroleum

(APC) - Get Report

acquired two smaller competitors,

Kerr-McGee

(KMG)

and

Western Gas

, for $21 billion.

What's happening right now is similar to what happened after the crash of 1987, when there was a gigantic rush of mergers. Oil's valuation levels have been knocked down, Cramer said, advising his listeners to strike now, before oil and gas and mineral stocks go much higher.

The oil stocks are all cheap, he said as are the copper, coal, aluminum and gold stocks.

Cramer said he's been buying

Alcan

(AL) - Get Report

, the cheapest aluminum on Earth, for his charitable trust,

Action Alerts PLUS.

Right on Track

CSX

(CSX) - Get Report

is the best railroad company in the country, Cramer told a caller.

The company ships a lot of ethanol and coal, and Cramer said he wouldn't just hold onto it, he'd be a buyer of this "high-quality" transportation company.

Cramer said he could not advocate owning

Anadarko Petroleum

(APC) - Get Report

because although the company did the right thing by acquiring Kerr-McGee and Western Gas, it will take many months for the deal to close, he said.

Image placeholder title

GlaxoSmithKline

(GSK) - Get Report

is the best drug company out there, other than

Schering-Plough

( SGP), which he owns for his charitable trust,

Action Alerts PLUS, Cramer told another.

He advised sticking with Glaxo and said it is the one drug company that he believes can have an unbelievable second half without a takeover.

When a caller asked about

Cisco

(CSCO) - Get Report

Cramer said he is not a fan of this company, because it is "stalled."

He suggested swapping out of it and going into

Ciena

(CIEN) - Get Report

or

Tellabs

( TLAB) instead.

"You have to get out of stocks that are stuck in the mud and get into stocks that are moving," he said

UnitedHealth Group

(UNH) - Get Report

, which Cramer owns for his charitable trust,

Action Alerts PLUS, is finished going down, he said.

The company just won a big lawsuit, and in addition, Cramer believes the investigation of the company's CEO, Bill McGuire, involving options backdating will lead to nothing. Goldman Sachs, usually a big bear on health organizations, also came out this morning and said maybe they've been too negative on the sector, Cramer said. Cramer believes UnitedHealth is a buy, he said.

He advised a caller to buy

Walgreen

(WAG)

, which he called best-of-breed.

Crystallex International

( KRY) owns the largest gold mine company, but unfortunately it is located in Venezuela, where the government has held the mine up, Cramer said.

He believes the stock is speculative and recommended getting out of it when it starts moving again and hits $4 or $5 (the stock was recently at $3.11).

Cramer told a caller to swap out of

Aflac

(AFL) - Get Report

and get into

Allstate

(ALL) - Get Report

.

Allstate currently has the greatest plan out there and it has stopped offering insurance to coastal cities that are potential hurricane victims, he said.

Cramer's second-best insurance play is

Prudential

(PRU) - Get Report

, he said.

Although Cramer believes

Titanium Metals

is a decent company, he said

Allegheny Technologies

(ATI) - Get Report

is a better-run company and he told a caller to get into that instead.

He also told a caller to skip

Sapient

(SAPE)

and get into

Accenture

(ACN) - Get Report

.

When a caller inquired about

Intel

(INTC) - Get Report

, Cramer called the company "dead money", saying that whereas before engineers used to run the company, now it is run by sales people.

Advanced Micro Devices

(AMD) - Get Report

is the better company in this sector, he said. It produces faster, better and cheaper products.

Cramer said

NRG Energy

(NRG) - Get Report

is a buy. Not only is it dirt cheap, but the company just announced a multi-million dollar project, he said.

He told a caller he likes the aircraft company

AAR

(AIR) - Get Report

and wouldn't be surprised if

Boeing

(BA) - Get Report

acquired it.

And he recommended buying

Citrix

(CTXS) - Get Report

, which he owns for his charitable trust,

Action Alerts PLUS.

Microsoft Missing Out

Microsoft

(MSFT) - Get Report

should buy

Yahoo!

(YHOO)

, Cramer said.

Cramer owns both Microsoft and Yahoo for his charitable trust,

Action Alerts PLUS.

Cramer said he's been telling people to buy Yahoo!, which, along with

Google

(GOOG) - Get Report

, is a top competitor in the Internet information arena.

The only problem is Microsoft, which wants to get into the Internet search business, might believe it can pose a threat to Yahoo! on its own, Cramer said. But Microsoft needs to recognize that it will more than likely not be able to compete against Yahoo!

Yahoo! can't be caught by Microsoft, he said. Buying back stock and raising dividends has proved fruitless for the company thus far. Therefore, Cramer believes it only makes sense for Microsoft to spend its money to acquire Yahoo!

There was a time a few months ago when

General Motors

(GM) - Get Report

looked like it was dying due to falling market share and rumors of bankruptcy, Cramer said.

But now, Cramer believes GM will be a player once again. The company's management has taken action and managed to buy back stock and get its healthcare costs in line. And even GM's automobile models are selling pretty well, he said.

Although it still might not be a blue chip, Cramer believes people should give General Motors some credit and respect, he said. He believes it is a buy.

At the time of publication, Cramer was long Alcan, Citrix, Microsoft, Schering-Plough, UnitedHealth and Yahoo!

Jim Cramer is a director and co-founder of TheStreet.com. He contributes daily market commentary for TheStreet.com's sites and serves as an adviser to the company's CEO. Outside contributing columnists for TheStreet.com and RealMoney.com, including Cramer, may, from time to time, write about stocks in which they have a position. In such cases, appropriate disclosure is made. To see his personal portfolio and find out what trades Cramer will make before he makes them, sign up for

Action Alerts PLUS. Listen to Cramer's RealMoney Radio show on your computer; just click

here. Watch Cramer on "Mad Money" at 6 p.m. ET weeknights on CNBC. Click

here to order Cramer's latest book, "Real Money: Sane Investing in an Insane World," click

here to get his second book, "You Got Screwed!" and click

here to order Cramer's autobiography, "Confessions of a Street Addict." While he cannot provide personalized investment advice or recommendations, he invites you to send comments on his column by

clicking here.

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