CIK: 0000860828 | TULSA, OK
| Quarter | Form Type | Holdings | Value | Filed | SEC |
|---|---|---|---|---|---|
| 13F-HR | 394 | $6.8B | 2026-07-23 | SEC ↗ | |
| 13F-HR | 377 | $6.2B | 2026-04-27 | SEC ↗ | |
| 13F-HR | 350 | $6.2B | 2026-01-15 | SEC ↗ | |
| 13F-HR | 363 | $6.0B | 2025-10-21 | SEC ↗ | |
| 13F-HR | 339 | $5.6B | 2025-07-22 | SEC ↗ | |
| 13F-HR | 311 | $5.0B | 2025-04-29 | SEC ↗ | |
| 13F-HR | 309 | $5.0B | 2025-01-29 | SEC ↗ | |
| 13F-HR | 295 | $5.0B | 2024-10-28 | SEC ↗ | |
| 13F-HR | 315 | $4.8B | 2024-07-31 | SEC ↗ | |
| 13F-HR | 312 | $4.7B | 2024-04-29 | SEC ↗ | |
| 13F-HR | 287 | $4.5B | 2024-01-29 | SEC ↗ | |
| 13F-HR | 261 | $3.8B | 2023-10-24 | SEC ↗ | |
| 13F-HR | 274 | $3.9B | 2023-07-18 | SEC ↗ | |
| 13F-HR | 254 | $3.7B | 2023-04-19 | SEC ↗ | |
| 13F-HR | 251 | $3.5B | 2023-01-17 | SEC ↗ | |
| 13F-HR | 239 | $25.9M | 2022-10-17 | SEC ↗ | |
| 13F-HR | 243 | $127.6M | 2022-07-15 | SEC ↗ | |
| 13F-HR | 252 | $94.8M | 2022-05-05 | SEC ↗ | |
| 13F-HR | 256 | $86.9M | 2022-01-27 | SEC ↗ | |
| 13F-HR | 236 | $82.7M | 2021-10-25 | SEC ↗ | |
| 13F-HR | 238 | $86.2M | 2021-08-02 | SEC ↗ | |
| 13F-HR | 239 | $93.2M | 2021-05-25 | SEC ↗ | |
| 13F-HR | 214 | $92.4M | 2021-02-08 | SEC ↗ | |
| 13F-HR | 201 | $79.3M | 2020-11-02 | SEC ↗ | |
| 13F-HR | 190 | $2.4M | 2020-08-07 | SEC ↗ | |
| 13F-HR | 166 | $73.7M | 2020-05-21 | SEC ↗ | |
| 13F-HR | 191 | $66.5M | 2020-02-04 | SEC ↗ | |
| 13F-HR | 179 | $2.0M | 2019-11-18 | SEC ↗ | |
| 13F-HR | 179 | $57.5M | 2019-08-07 | SEC ↗ | |
| 13F-HR | 131 | $19.7M | 2019-05-10 | SEC ↗ | |
| 13F-HR | 177 | $50.7M | 2019-02-06 | SEC ↗ | |
| 13F-HR | 183 | $63.5M | 2018-11-13 | SEC ↗ | |
| 13F-HR | 177 | $60.3M | 2018-08-06 | SEC ↗ | |
| 13F-HR | 187 | $58.2M | 2018-05-04 | SEC ↗ | |
| 13F-HR | 194 | $40.1M | 2018-01-29 | SEC ↗ | |
| 13F-HR | 189 | $31.6M | 2017-11-14 | SEC ↗ | |
| 13F-HR | 192 | $26.9M | 2017-08-09 | SEC ↗ | |
| 13F-HR | 192 | $21.1M | 2017-04-27 | SEC ↗ | |
| 13F-HR | 182 | $27.4M | 2017-02-13 | SEC ↗ | |
| 13F-HR | 140 | $668.5M | 2016-11-02 | SEC ↗ | |
| 13F-HR | 142 | $645.7M | 2016-08-09 | SEC ↗ | |
| 13F-HR | 138 | $611.1M | 2016-05-03 | SEC ↗ | |
| 13F-HR | 135 | $570.7M | 2016-02-19 | SEC ↗ | |
| 13F-HR | 132 | $555.0M | 2015-11-04 | SEC ↗ | |
| 13F-HR | 130 | $582.8M | 2015-08-10 | SEC ↗ | |
| 13F-HR | 135 | $812.3M | 2015-05-11 | SEC ↗ | |
| 13F-HR | 126 | $540.2M | 2015-02-11 | SEC ↗ | |
| 13F-HR | 125 | $488.7M | 2014-10-27 | SEC ↗ | |
| 13F-HR | 128 | $516.4M | 2014-08-06 | SEC ↗ | |
| 13F-HR | 116 | $460.5M | 2014-05-12 | SEC ↗ | |
| 13F-HR | 121 | $454.3M | 2014-02-07 | SEC ↗ | |
| 13F-HR | 115 | $417.3M | 2013-11-06 | SEC ↗ | |
| 13F-HR | 113 | $371.0M | 2013-07-16 | SEC ↗ |