players with the best obp in a season with the oakland as with a minimum of 3.1 pa per team game since 1968

Since 1968, Jason Giambi has the highest on-base percentage for the Oakland Athletics when he has had 3.1 or more (PA/TM GMS) in a season, with an on-base percentage of .477 in 2001.

	NAME	OBP	PA	TM GMS	PA/TM GMS	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	TB	XBH	SH	SF	IBB	GIDP	AVG	SLG	OPS	wRC	WRAA	wOBA	wRC+	BRAA
1	Jason Giambi J. Giambi	.477	671	162	4.14	2001	OAK	154	520	109	178	47	2	38	120	129	13	83	2	0	343	87	0	9	24	17	.342	.660	1.137	162	78.3	.465	193	78.7
2	Jason Giambi J. Giambi	.476	664	161	4.12	2000	OAK	152	510	108	170	29	1	43	137	137	9	96	2	0	330	73	0	8	6	9	.333	.647	1.123	163	75.5	.471	182	74.3
3	Mark McGwire M. McGwire	.467	548	162	3.38	1996	OAK	130	423	104	132	21	0	52	113	116	8	112	0	0	309	73	0	1	16	14	.312	.730	1.198	142	71.8	.489	190	68.5
4	Rickey Henderson R. Henderson	.439	594	162	3.67	1990	OAK	136	489	119	159	33	3	28	61	97	4	60	65	10	282	64	2	2	2	13	.325	.577	1.016	125	58.9	.447	190	60.9
5	Jason Giambi J. Giambi	.422	695	162	4.29	1999	OAK	158	575	115	181	36	1	33	123	105	7	106	1	1	318	70	0	8	6	11	.315	.553	.975	137	46.6	.418	149	46
6	Rickey Henderson R. Henderson	.420	722	162	4.46	1980	OAK	158	591	111	179	22	4	9	53	117	5	54	100	26	236	35	6	3	7	6	.303	.399	.820	112	31.3	.377	137	31.2
7	John Jaha J. Jaha	.414	570	162	3.52	1999	OAK	142	457	93	126	23	0	35	111	101	9	129	2	0	254	58	0	3	2	14	.276	.556	.970	112	37.7	.417	149	37.2
8	Rickey Henderson R. Henderson	.414	622	162	3.84	1983	OAK	145	513	105	150	25	7	9	48	103	4	80	108	19	216	41	1	1	8	11	.292	.421	.835	99	28.4	.378	140	29
9	Rickey Henderson R. Henderson	.411	376	114	3.3	1994	OAK	87	296	66	77	13	0	6	20	72	5	45	22	7	108	19	1	2	1	0	.260	.365	.776	56	8.7	.361	117	8.5
10	Reggie Jackson R. Jackson	.410	677	162	4.18	1969	OAK	152	549	123	151	36	3	47	118	114	12	142	13	5	334	86	1	1	20	8	.275	.608	1.018	137	64.9	.442	179	62.1
11	Jack Cust J. Cust	.408	507	162	3.13	2007	OAK	124	395	61	101	18	1	26	82	105	1	164	0	2	199	45	0	6	2	6	.256	.504	.912	91	27.9	.397	145	28.9
12	Rickey Henderson R. Henderson	.408	493	109	4.52	1981	OAK	108	423	89	135	18	7	6	35	64	2	68	56	22	185	31	0	4	4	7	.319	.437	.845	78	25.6	.385	152	27.3
13	Rickey Henderson R. Henderson	.407	487	144	3.38	1995	OAK	112	407	67	122	31	1	9	54	72	4	66	32	10	182	41	1	3	2	8	.300	.447	.855	81	20.2	.383	130	19.2
14	Sal Bando S. Bando	.407	636	162	3.93	1970	OAK	155	502	93	132	20	2	20	75	118	6	88	6	10	216	42	7	3	5	12	.263	.430	.837	103	30.6	.381	140	30.2
15	Mitchell Page M. Page	.405	592	161	3.68	1977	OAK	145	501	85	154	28	8	21	75	78	6	95	42	5	261	57	4	3	6	7	.307	.521	.926	107	38.1	.404	157	39.7
16	Sal Bando S. Bando	.400	734	162	4.53	1969	OAK	162	609	106	171	25	3	31	113	111	11	82	1	4	295	59	2	1	5	12	.281	.484	.885	126	47.6	.400	153	44.5
17	Rickey Henderson R. Henderson	.400	578	162	3.57	1991	OAK	134	470	105	126	17	1	18	57	98	7	73	58	18	199	36	0	3	7	7	.268	.423	.823	90	24.8	.374	137	25
18	Rickey Henderson R. Henderson	.399	597	162	3.69	1984	OAK	142	502	113	147	27	4	16	58	86	5	81	66	18	230	47	1	3	1	7	.293	.458	.857	99	32	.387	146	32.1
19	Carney Lansford C. Lansford	.398	616	162	3.8	1989	OAK	148	551	81	185	28	2	2	52	51	9	25	37	15	223	32	1	4	2	21	.336	.405	.803	92	24.6	.366	136	25.4
20	Rickey Henderson R. Henderson	.398	656	162	4.05	1982	OAK	149	536	119	143	24	4	10	51	116	2	94	130	42	205	38	0	2	1	5	.267	.382	.780	95	21.7	.361	127	21.3
21	Eric Chavez E. Chavez	.397	577	162	3.56	2004	OAK	125	475	87	131	20	0	29	77	95	3	99	6	3	238	49	0	4	10	21	.276	.501	.898	98	26.3	.384	134	24.9
22	Erubiel Durazo E. Durazo	.396	578	162	3.57	2004	OAK	142	511	80	164	35	1	22	88	56	9	104	3	2	267	58	0	2	9	7	.321	.523	.919	102	30.2	.392	139	28.8
23	Gene Tenace G. Tenace	.395	623	162	3.85	1975	OAK	158	498	83	127	17	0	29	87	106	12	127	7	4	231	46	3	4	2	8	.255	.464	.859	103	34.5	.395	153	37.2
24	Daric Barton D. Barton	.393	686	162	4.23	2010	OAK	159	556	79	152	33	5	10	57	110	3	102	7	3	225	48	12	5	2	8	.273	.405	.798	100	21.2	.360	127	21.6
25	Reggie Jackson R. Jackson	.391	604	162	3.73	1974	OAK	148	506	90	146	25	1	29	93	86	4	105	25	5	260	55	0	8	20	8	.289	.514	.905	101	36.1	.399	161	39.7