al lowest team era in a season between 1996 to 2005

Between the 1996 and 2005 seasons, the Seattle Mariners had the best ERA by an AL team in a season, with an ERA of 3.54 in 2001.

	TEAM	ERA	SEASON	G	W%	W	L	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Mariners	3.54	2001	162	.716	116	46	162	1,051	8	4	56	1465.0	1,293	576	627	160	465	64	28	6,096	40	6.46	2.86	2.26	0.98	17.2	7.6	1.20	.260	3.85	7.94
2	Athletics	3.59	2001	162	.630	102	60	162	1,117	13	6	44	1463.1	1,384	583	645	153	440	46	49	6,115	42	6.87	2.71	2.54	0.94	18.3	7.2	1.25	.282	3.97	8.51
3	Indians	3.61	2005	162	.574	93	69	162	1,050	6	0	51	1452.2	1,363	582	642	157	413	41	20	6,048	26	6.51	2.56	2.54	0.97	17.4	6.8	1.22	.275	3.98	8.44
4	White Sox	3.61	2005	162	.611	99	63	162	1,040	9	4	54	1475.2	1,392	592	645	167	459	52	42	6,176	65	6.34	2.80	2.27	1.02	16.8	7.4	1.25	.275	3.93	8.49
5	Athletics	3.63	2003	162	.593	96	66	162	1,018	16	5	48	1441.2	1,336	582	643	140	499	54	42	6,078	41	6.36	3.12	2.04	0.87	16.7	8.2	1.27	.274	4.01	8.34
6	Angels	3.68	2005	162	.586	95	67	162	1,126	7	3	54	1464.1	1,419	598	643	158	443	48	24	6,158	70	6.92	2.72	2.54	0.97	18.3	7.2	1.27	.288	3.95	8.72
7	Athletics	3.68	2002	162	.636	103	59	162	1,021	9	5	48	1452.0	1,391	593	654	135	474	62	45	6,158	40	6.33	2.94	2.15	0.84	16.6	7.7	1.28	.281	4.05	8.62
8	Athletics	3.69	2005	162	.543	88	74	162	1,075	9	2	38	1450.1	1,315	594	658	154	504	60	42	6,080	41	6.67	3.13	2.13	0.96	17.7	8.3	1.25	.271	4.08	8.16
9	Angels	3.69	2002	162	.611	99	63	162	999	7	2	54	1452.1	1,345	595	644	169	509	49	24	6,097	52	6.19	3.15	1.96	1.05	16.4	8.3	1.28	.269	3.99	8.33
10	Twins	3.71	2005	162	.512	83	79	162	965	9	4	44	1464.1	1,458	604	662	169	348	43	38	6,072	35	5.93	2.14	2.77	1.04	15.9	5.7	1.23	.283	4.07	8.96
11	Red Sox	3.75	2002	162	.574	93	69	162	1,157	5	3	51	1446.0	1,339	603	665	146	430	84	29	6,049	31	7.20	2.68	2.69	0.91	19.1	7.1	1.22	.282	4.14	8.33
12	Mariners	3.76	2003	162	.574	93	69	162	1,001	8	3	38	1441.0	1,340	602	637	173	466	54	24	6,025	35	6.25	2.91	2.15	1.08	16.6	7.7	1.25	.269	3.98	8.37
13	Yankees	3.82	1998	162	.704	114	48	162	1,080	22	8	48	1456.2	1,357	619	656	156	466	68	25	6,100	37	6.67	2.88	2.32	0.96	17.7	7.6	1.25	.277	4.05	8.38
14	Yankees	3.84	1997	162	.593	96	66	162	1,165	11	3	51	1467.2	1,463	626	688	144	532	45	41	6,279	62	7.14	3.26	2.19	0.88	18.6	8.5	1.36	.300	4.22	8.97
15	Yankees	3.87	2002	161	.640	103	58	161	1,135	9	5	53	1452.0	1,441	625	697	144	403	48	44	6,159	59	7.04	2.50	2.82	0.89	18.4	6.5	1.27	.293	4.32	8.93
16	Orioles	3.91	1997	162	.605	98	64	162	1,139	8	4	59	1461.0	1,404	635	681	164	563	30	31	6,219	43	7.02	3.47	2.02	1.01	18.3	9.1	1.35	.287	4.20	8.65
17	Blue Jays	3.92	1997	162	.469	76	86	162	1,150	19	7	34	1442.2	1,453	628	694	167	497	39	29	6,149	54	7.17	3.10	2.31	1.04	18.7	8.1	1.35	.299	4.33	9.06
18	Red Sox	4.00	1999	162	.580	94	68	162	1,131	6	1	50	1436.2	1,396	638	718	160	469	55	25	6,120	28	7.09	2.94	2.41	1.00	18.5	7.7	1.30	.287	4.50	8.75
19	Yankees	4.02	2003	163	.623	101	61	163	1,119	8	3	49	1462.0	1,512	653	716	145	375	49	36	6,209	33	6.89	2.31	2.98	0.89	18.0	6.0	1.29	.302	4.41	9.31
20	Yankees	4.02	2001	161	.594	95	65	161	1,266	7	3	57	1451.1	1,429	649	713	158	465	55	29	6,174	54	7.85	2.88	2.72	0.98	20.5	7.5	1.31	.300	4.42	8.86
21	Twins	4.03	2004	162	.568	92	70	162	1,123	4	4	48	1476.0	1,523	661	715	167	431	54	27	6,269	45	6.85	2.63	2.61	1.02	17.9	6.9	1.32	.302	4.36	9.29
22	Blue Jays	4.06	2005	162	.494	80	82	162	958	9	3	35	1447.0	1,475	653	705	185	444	68	29	6,166	39	5.96	2.76	2.16	1.15	15.5	7.2	1.33	.286	4.38	9.17
23	Mariners	4.07	2002	162	.574	93	69	162	1,063	8	3	43	1445.1	1,422	654	699	178	441	49	34	6,117	42	6.62	2.75	2.41	1.11	17.4	7.2	1.29	.284	4.35	8.85
24	Twins	4.12	2002	161	.584	94	67	161	1,026	8	5	47	1444.2	1,454	662	712	184	439	45	24	6,133	62	6.39	2.73	2.34	1.15	16.7	7.2	1.31	.286	4.44	9.06
25	Yankees	4.13	1999	162	.605	98	64	162	1,111	6	4	50	1439.2	1,402	661	731	158	581	57	27	6,233	49	6.95	3.63	1.91	0.99	17.8	9.3	1.38	.288	4.57	8.76