Updated Pennant Drought List

[Tugg Speedman]

http://www.cbssports.com/mlb/news/the-exposnationals-franchise-now-has-mlbs-longest-pennant-drought/

Here is the year of each team's last pennant:

2016: Cubs and Indians
2015: Royals and Mets
2014: Giants
2013: Red Sox and Cardinals
2012: Tigers
2011: Rangers
2009: Yankees and Phillies
2008: Rays
2007: Rockies
2005: White Sox and Astros
2003: Marlins
2002: Angels
2001: Diamondbacks
1999: Braves
1998: Padres
1993: Blue Jays
1991: Twins
1990: Reds and Athletics
1988: Dodgers
1983: Orioles
1982: Brewers
1979: Pirates
Never: Expos/Nats and Mariners

The Mariners joined the league as an expansion team in 1977, the Expos/Nats in 1969, so the Mariners pennant drought is shorter than the Expos/Nats by default.

[TallTitan34]

Expos got screwed by the strike shortened season.

[GGGG]

So over the last 12 seasons, half the MLB teams have made the World Series. 

[Tugg Speedman]

Longest current World Series championship drought

Seasons    Team    Last won    Last appearance
107    Chicago Cubs    1908    2016
67    Cleveland Indians    1948    2016
55    Texas Rangers    never (franchise began 1961)    2011
54    Houston Astros    never (franchise began 1962)    2005
47    Milwaukee Brewers    never (franchise began 1969)    1982
47    San Diego Padres    never (franchise began 1969)    1998
47    Washington Nationals    never (franchise began 1969)    never
39    Seattle Mariners    never (franchise began 1977)    never
36    Pittsburgh Pirates    1979    1979
32    Baltimore Orioles    1983    1983
31    Detroit Tigers    1984    2012
29    New York Mets    1986    2015
27    Los Angeles Dodgers    1988    1988
26    Oakland Athletics    1989    1990
25    Cincinnati Reds    1990    1990
24    Minnesota Twins    1991    1991
23    Colorado Rockies    never (franchise began 1993)    2007
22    Toronto Blue Jays    1993    1993
20    Atlanta Braves    1995    1999
18    Tampa Bay Rays    never (franchise began 1998)    2008
14    Arizona Diamondbacks    2001    2001
13    Los Angeles Angels of Anaheim    2002    2002
12    Miami Marlins    2003    2003
10    Chicago White Sox    2005    2005
7    Philadelphia Phillies    2008    2009
6    New York Yankees    2009    2009
4    St. Louis Cardinals    2011    2013
2    Boston Red Sox    2013    2013
1    San Francisco Giants    2014    2014
0    Kansas City Royals    2015    2015