The New York Yankees had the best on-base percentage by a team in 2007, with an on-base percentage of .366.

	TEAM	OBP	SEASON	G	W%	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	SLG	OPS
1	Yankees	.366	2007	162	.580	94	68	5,717	968	1,656	326	32	201	929	637	78	991	123	40	6,527	2,649	559	41	54	32	138	.290	.463	.829
2	Red Sox	.362	2007	162	.593	96	66	5,589	867	1,561	352	35	166	829	689	64	1,042	96	24	6,426	2,481	553	30	54	54	146	.279	.444	.806
3	Rockies	.354	2007	163	.552	90	73	5,691	860	1,591	313	36	171	823	622	58	1,152	100	31	6,498	2,489	520	83	44	51	140	.280	.437	.791
4	Phillies	.354	2007	162	.549	89	73	5,688	892	1,558	326	41	213	850	641	90	1,205	138	19	6,536	2,605	580	65	52	74	125	.274	.458	.812
5	Angels	.345	2007	162	.580	94	68	5,554	822	1,578	324	23	123	776	507	40	883	139	55	6,198	2,317	470	32	65	55	146	.284	.417	.762
6	Tigers	.345	2007	162	.543	88	74	5,757	887	1,652	352	50	177	857	474	56	1,054	103	30	6,363	2,635	579	31	45	45	128	.287	.458	.802
7	Indians	.343	2007	162	.593	96	66	5,604	811	1,504	305	27	178	784	590	80	1,202	72	41	6,365	2,397	510	32	59	56	114	.268	.428	.771
8	Mets	.342	2007	162	.543	88	74	5,605	804	1,543	294	27	177	761	549	54	981	200	46	6,343	2,422	498	77	58	64	114	.275	.432	.775
9	Braves	.339	2007	162	.519	84	78	5,689	810	1,562	328	27	176	781	534	49	1,149	64	30	6,374	2,472	531	55	47	43	137	.275	.435	.774
10	Athletics	.338	2007	162	.469	76	86	5,577	741	1,430	295	16	171	711	664	49	1,119	52	20	6,364	2,270	482	18	56	29	142	.256	.407	.745
11	Cardinals	.337	2007	162	.481	78	84	5,529	725	1,513	279	13	141	690	506	54	909	56	33	6,211	2,241	433	68	54	47	154	.274	.405	.743
12	Dodgers	.337	2007	162	.506	82	80	5,614	735	1,544	276	35	129	706	511	41	864	137	50	6,279	2,277	440	58	55	41	116	.275	.406	.743
13	Mariners	.337	2007	162	.543	88	74	5,684	794	1,629	284	22	153	754	389	62	861	81	30	6,208	2,416	459	33	40	32	154	.287	.425	.762
14	Devil Rays	.336	2007	162	.407	66	96	5,593	782	1,500	291	36	187	750	545	53	1,324	131	48	6,277	2,424	514	34	52	31	119	.268	.433	.769
15	Marlins	.336	2007	162	.438	71	91	5,627	790	1,504	340	38	201	749	521	82	1,332	105	34	6,344	2,523	579	72	42	46	107	.267	.448	.784
16	Reds	.335	2007	162	.444	72	90	5,607	783	1,496	293	23	204	747	536	66	1,113	97	31	6,328	2,447	520	73	46	51	140	.267	.436	.772
17	Orioles	.333	2007	162	.426	69	93	5,631	756	1,529	306	30	142	718	500	47	939	144	42	6,263	2,321	478	38	47	31	139	.272	.412	.746
18	Cubs	.333	2007	162	.525	85	77	5,643	752	1,530	340	28	151	711	500	40	1,054	86	33	6,268	2,379	519	48	37	48	127	.271	.422	.754
19	Twins	.330	2007	162	.488	79	83	5,522	718	1,460	273	36	118	671	512	48	839	112	30	6,161	2,159	427	34	45	41	149	.264	.391	.721
20	Astros	.330	2007	162	.451	73	89	5,605	723	1,457	293	30	167	700	547	55	1,043	65	33	6,324	2,311	490	77	40	40	142	.260	.412	.742
21	Brewers	.329	2007	162	.512	83	79	5,554	801	1,455	310	37	231	774	501	76	1,137	96	32	6,238	2,532	578	60	47	60	112	.262	.456	.785
22	Rangers	.328	2007	162	.463	75	87	5,555	816	1,460	298	36	179	768	503	56	1,224	88	25	6,213	2,367	513	57	42	27	129	.263	.426	.754
23	Blue Jays	.327	2007	162	.512	83	79	5,536	753	1,434	344	24	165	719	533	47	1,044	57	22	6,197	2,321	533	33	48	32	127	.259	.419	.746
24	Nationals	.325	2007	162	.451	73	89	5,520	673	1,415	309	31	123	646	524	53	1,128	69	23	6,201	2,155	463	63	41	38	143	.256	.390	.715
25	Pirates	.325	2007	162	.420	68	94	5,569	724	1,463	322	31	148	694	463	71	1,135	68	30	6,214	2,291	501	60	51	31	130	.263	.411	.736