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Old 10-11-2004, 11:07 PM
Join Date: Aug 2001
Posts: 896
Shamrock vs. Diamond Shamrock (U.S. gas stations)

The other day, my girlfriend and I drove by an old-looking gas station that had a "Shamrock" sign. My girlfriend asked how they could "get away" with using part of the Diamond Shamrock moniker. I said I bet it was just an old Diamond Shamrock sign, because it looked too much like the newer signs. But I really don't know. Does anybody remember Diamond Shamrocks being just "Shamrocks"? Are both names still owned by the same company?

Sorry if this is a stupid question; I'm avoiding work as I type this.
Old 10-11-2004, 11:23 PM
Join Date: Dec 2002
Location: Voting anti-obamanation
Posts: 10,300
Diamond Alkali, originally of Pittsburgh, PA was merged with Shamrock Oil and Gas of Amarillo, TX in 1967 to form Diamond Shamrock Corp. In 1960, Shamrock Oil and Gas acquired the Sigmor chain of service stations. In 1978, Sigmor bought back the service stations, but continued to distribute Diamond Shamrock products, however in 1983, Sigmor fully merged with Diamond Shamrock. They are now part of Valero Energy Corporation.

Got all that straight?
Crows. Keeping our highways clear of roadkill for over 80 years
Old 10-11-2004, 11:38 PM
Join Date: Aug 2001
Posts: 896
cool, thanks
Old 10-12-2004, 07:13 AM
Join Date: May 1999
Posts: 18,407
Just to throw another wrech into the gas pump, There is a new (maybe 1 year old) 'Diamond' gas station near me, just as "Diamond Shamrock' got rolling w/ it's ad campain in my area.

That same ad campain is used w/ Valero name in the NYC area (same song, just 'Diamond Shamrock" replaced w/ 'Valero', and slightly softer.
Old 10-12-2004, 08:28 AM
Charter Member
Join Date: Dec 2001
Location: Marietta, GA
Posts: 7,988
Does Someone have a picture? We do not have either stations in Georgia. I am curious to check the picture against a Sign I have seen.
Old 10-12-2004, 08:54 PM
Join Date: Jun 2000
Location: Dallas, TX
Posts: 15,124
So... there are still Diamond Shamrock gas stations, AND Shamrock gas stations, right? Same company? Different companies?

My brother and I had originally assumed that "Shamrock" was kind of a low-rent knockoff of Diamond Shamrock, much like McDonald's/McDowell's in "Coming to America" with Eddie Murphy.
Old 10-12-2004, 11:32 PM
Join Date: Aug 2000
Location: East Texas
Posts: 4,994
There are both Shamrock and Diamond Shamrock gas stations. There is one of each on the same road in my town. The logos are not the same. The Shamrock logo is just a shamrock. The Diamond Shamrock consists of three diamonds arranged in a shape vaguely reminiscent of a shamrock. The Shamrocks around here are newer and nicer-looking than the Diamond Shamrocks, but that is not true of other places where I have seen both stations.
Old 10-13-2004, 02:47 AM
Join Date: Sep 1999
Location: La Frontera, US of A
Posts: 864
I do not think that the two gas stations are related at the present time. I first noticed the plain "Shamrock" stations about 6 months ago here. They are new or refurbished buildings. On their website, Valero Oil does not mention the plain "Shamrock" brand (I could not find any website that refers to the plain Shamrock gas station).

About Valero Oil

A marketing leader, Valero has approximately 4,500 retail sites branded as Valero, Diamond Shamrock, Ultramar, Beacon and Total. The company markets on a retail and wholesale basis through a bulk and rack marketing network in 40 U.S. states, Canada, Latin America and the Caribbean region.

However, IIRC, the logo of the new plain Shamrock gas stations is somewhat similar to the old Shamrock logo: Old Time Shamrock Logo

Here is the Diamond Shamrock logo: Diamond Shamrock Logo
Old 10-13-2004, 02:56 AM
Join Date: Sep 1999
Location: La Frontera, US of A
Posts: 864
However, IIRC, the logo of the new plain Shamrock gas stations is somewhat similar to the old Shamrock logo: Old Time Shamrock Logo
After paying almost $2.00 today, I just noticed how low the price was when this picture was taken. I remember when I thought that $1.17 was outrageous
(I know, to some people in different parts of the country/world, paying $2.00 per gallon would not be too bad).

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