Nexen Heroes Baseball Club (Hangul: 넥센 히어로즈 야구단) are a South Korean professional baseball team based in Seoul. They are a member of the Korea Baseball Championship and compete in the annual KBO Championship which culminates in the Korean Series. The Heroes mascot is Teokdori (턱돌이; Mr. Jaw).
In 2014, the Futures League squad changed its name to Hwaseong Heroes (화성 히어로즈) differentiating from the first string.
The franchise was originally known as the Sammi Superstars and had subsequent incarnations as the Chongbo Pintos and Pacific Dolphins. The team was renamed the Hyundai Unicorns after being sold to Hyundai in 1996, and was relocated from Incheon to Suwon. The Unicorns won the KBO championship four times (1998, 2000, 2003 and 2004), with only the Haitai Tigers (now Kia Tigers) having a better record of championship victories. But in 2008, the team was disbanded. After that, Centennial Investments founded a new team called Woori Heroes. Unlike the other Korean Professional Baseball teams, the Heroes are owned by a collection of individuals headed by Lee Jang-Seok, instead of being owned by its naming sponsor. But during the 2008 season, Woori broke the naming sponsor deal, citing that the Heroes has not paid the full founding fee to the KBO yet, forcing the team to trade most of its star players for cash. For the rest of 2008 season and the 2009 season, the team used only "Heroes" for its name. On February 8, 2010, naming rights were sold to Nexen Tire. The Heroes play their home games at the Mokdong Baseball Stadium in the Yangcheon-gu of Seoul.
Nexen/CNOOC is a Chinese oil and gas company based in Calgary, Alberta. On 25 February 2013, Nexen became a wholly owned subsidiary of Beijing-based CNOOC Limited. It was a Canadian company, but was purchased by CNOOC.
It has three growth strategies: oil sands and shale gas in western Canada as well as conventional exploration and development primarily in the North Sea, offshore in West Africa, and deepwater exploration in the Gulf of Mexico.
Nexen started in 1969 as Canadian Occidental Petroleum Ltd. (CanOxy), and was 80% owned by Occidental Petroleum, an oil company based in Los Angeles. In the first decade of its existence, CanOxy was fairly Canadian-oriented. During the 1980s and 1990s they increased their international holdings, first in the Gulf of Mexico, then into places like Yemen and the North Sea. Further Canadian assets were also acquired.
In the 1990s, Nexen, then known as CanOxy, purchased the assets of what once was the first state-owned oil and gas company in North America; Wascana Energy Inc., formerly known as SaskOil. Founded by Saskatchewan New Democratic Party Premier Allan Blakeney in 1973, Saskoil was privatized in 1986 by Progressive Conservative Premier Grant Devine.